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A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High...

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153 A3HG Series High Pressure Variable Displacement Piston Pumps A3HG100 A3HG71 A3HG Through Drive A3HG Series High Pressure Variable Displacement Piston Pumps 156 Graphic 1 2 5 10 20 50 100 200 300 Symbol Page Pump Type Single Pump Geometric Displacement cm 3 /rev 35 M O A3HG16 A3HG37 A3HG56 A3HG71 A3HG100 A3HG145 A3HG180 Maximum Operating Pressure MPa Four control types are available such as pressure compensator type. Refer to page 157. “A3HG” Series High Pressure Variable Displacement Piston Pumps A3HG Series High Pressure Variable Displacement Piston Pumps
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Page 1: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

153A3HG Series High Pressure Variable Displacement Piston Pumps

A3HG100A3HG71 A3HG Through Drive

A3H

G S

erie

s Hig

h Pr

essu

re

Var

iabl

e D

ispl

acem

ent P

isto

n Pu

mps

156

Graphic

1 2 5 10 20 50 100 200 300Symbol PagePump Type

Single Pump

Geometric Displacementcm3/rev

35MO

A3HG16

A3HG37

A3HG56

A3HG71

A3HG100

A3HG145

A3HG180

MaximumOperatingPressure

MPa

★ Four control types are available such as pressure compensator type. Refer to page 157.

■ “A3HG” Series High Pressure Variable Displacement Piston Pumps

A3HG Series High PressureVariable Displacement Piston Pumps

Page 2: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

154 A3HG Series High Pressure Variable Displacement Piston Pumps

Hydraulic Fluids

Instructions

■ Hydraulic FluidsUse clean petroleum base oils equivalent to ISO VG-32 or 46. The recommended viscosity range is from 20 to 400 mm2/s and temperature range is from 0 to 60 C°, both of which have to be satisfied for the use of the above hydraulic oils.

■ MountingWhen installing the pump the filling port should be positioned upwards.

■ Alignment of ShaftEmploy a flexible coupling whenever possible, and avoid any stress from bending or thrust.Maximum permissible misalignment is less than 0.1 mm TIR and maximum permissible misangular is less than 0.2.

■ Suction PressurePermissible suction pressure at suction port of the pump is between -16.7 and +50 kPa.In case of the speed is over 1800 r/min, adjust the pressure 0 to +50 kPa.For piping to the suction port, use the pipes of the same diametre as that of the specified pipe flange to be used.Make sure that the height of the pump suction port is whithin one metre from the oil level in the reservoir.

■ Hints on PipingWhen using steel pipes for the suction or discharge ports, excessive load from the piping to the pump generates excessive noise. Whenever there is fear of excessive load, please use rubber hoses.

■ Suction PipingIn case the pump is installed above the oil level, the suction piping and suction line filter should be located lower than the pump position to prevent air in the suction line.

■ Pilot PipingInstall Pilot piping according to the chart.

[Recommended Pilot Piping Size]

Port /Flange Code Fitting Size Inside Dia. of Pipe

E1 M14×1.5

6 mm or more U1 1/2-20UNF

U2 G 1/4

J1 R 1/4

■ Control of ContaminationDue caution must be paid to maintaining control over contamination of the operating oil which can otherwise lead to breakdowns and shorten the life of the unit. Please maintain the degree of contamination within NAS Grade 9.The suction port must be equipped with at least a 100 μm (150 mesh) reservoir type filter and the return line must have a line filter of under 10 μm.

■ Drain PipingInstall drain piping according to the chart and ensure that pressure within the pump housing should be maintained at a normal pressure of less than 0.1 MPa and surge pressure of less than 0.5 MPa.Length of piping should be less than 1 m, and the pipe end should be submerged in oil.

[Recommended Drain Piping Size]

Model Port /Flange Code

Fitting Inside Dia. of PipeSize Inside Dia.

A3HG16A3HG37

E1 M22×1.512 mm or

more12 mm or

moreU1 7/8-14UNFU2 G 1/2J1 R 1/2

A3HG56|

A3HG180

E1 M27×216 mm or

more19 mm or

moreU1 1 1/16-12UNFU2 G 3/4J1 R 3/4

■ Safety ValveWhen delivery line is blocked suddenly, surge pressure is occurred so a safety valve should be set in the circuit to eliminate any damage on equipment and piping.

■ Bleeding AirIt may be necessary to bleed air from pump case and outlet line to remove causes of vibration.

■ StartingBefore first starting, fill pump case with clean operating oil via the fill port.In order to avoid air blockage when first starting, adjust the control valves so that the discharged oil from the pump is returned direct to the tank or the actuator moves in a free load.

[Volume of Pre-fill Oil Required]

Model Volume cm3 Model Volume cm3

A3HG16 400 A3HG100 1600

A3HG37 850 A3HG145 2350

A3HG56 1050 A3HG180 3300

A3HG71 1480 ―― ――

Page 3: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

155

PISTON PUMPS

A3HG Series High Pressure Variable Displacement Piston Pumps

A3

HG

Ser

ies

Setting Discharge Pressure and DeliveryAt the time of shipment, the unit has been preset to maximum delivery and minimum discharge pressure.Adjust the preset delivery and pressure to meet your system requirements.

Turning the adjustment screw clockwise, increases pressure. For the volume adjusted by each full turn of the adjustment screw, see below Table.After adjustment, make sure to tighten the lock nut.

Model Numbers Adjustment Volume MPa

5.5

6.3

5.7

A3HG16/A3HG37/A3HG56-01

A3HG71/A3HG100/A3HG145-01

A3HG180-01

Adjustment of Discharge Pressure

Volume adjusted by each full turn of the pressure adjustment screw

Turning the flow adjustment screw clockwise, decreases delivery. For the volume adjusted by each full turn of the adjustment screw, see below Table.After adjustment, make sure to tighten the lock nut.

Model Numbers

1.4

3.3

4.2

4.9

6.2

9.4

10.3

A3HG16

A3HG37

A3HG56

A3HG71

A3HG100

A3HG145

A3HG180

Adjustable volumewith each full turn of the

adjustment screwcm3/rev

Minimum adjustmentflow

cm3/rev

8

16

35

45

63

95

125

Adjustment of Delivery

The minimum adjustable flow and adjustable volume of each full turn of the delivery adjustment screw

Flow Adjustment Screw Protrusion Length “L” vs. Geometric Displacement (reference)

LCover

Flow Adj. Screw

Lock Nut

Retainer

5 100

20

40

60

80

100

120

140

160

180

mm

cm3/rev

200

15 20

A3HG16

A3HG37

A3HG56

A3HG71

A3HG100

A3HG145

A3HG180

Geo

met

ric D

ispl

acem

ent

Adjustment Screw Protrusion Length “L”

Page 4: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

156 A3HG Series High Pressure Variable Displacement Piston Pumps

Pipe Flange ThreadConnecting Port

Shaft

Mounting Flange

OUT

IN

Flow Adj. Screw

Spool Pressure Compensator ValvePressure Adj. Screw

Control Piston

Drain Port

Pivot

Shaft

Cradle

Slipper RetainerPiston Ass'ySpringSpringCylinder BlockPort Plate

A3HG Series High Pressure Variable Displacement Piston Pumps

■ Features● Conforming to International Standards

We have widened the range and now have available pumps not only with JIS mounting but also ISO 3019-2 and SAE J744 variants as standard depending on market needs.Both Keyed Shaft and Spline Shaft are available as standard design.

● High Pressure and wide flow rangeMaintaining the high performance of our A3H pumps, the improved A3HG series now offers a nominal pressure of 31.5 MPa. With a wide flow range, varying from 16.3 cm3/rev to 180.7 cm3/rev.Supporting a wide range of applications as mid-high load capacity pumps.

● Through-drive System Adopted as A Standard FeatureThe through-drive system adopted as a standard feature allows connecting a pump having the same capacity as the driving pump on the driven side, increasing the maximum flow range. Any pump conforming to international standards can be used on the driven side; replacement in machines can be readily done.

● Wide Variety of Control ModesFour control modes are available to support various functions:pressure compensator type, pilot pressure control type pressure compensator, constant power control type with external pilot and load sensing type.

Mounting

Shaft ExtensionKeyed Spline

Frange/Port Code

Pipe Flange Thread

Connecting Port Mounting Flange and Shaft

E1 Metric Metric Conforms to ISO 3019-2

U1 Unified Unified Conforms to SAE J744

U2 Metric BSPP Conforms to SAE J744

J1 Metric Rc Conforms to SAE J744

Page 5: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

157

PISTON PUMPS

A3HG Series High Pressure Variable Displacement Piston Pumps

A3

HG

Ser

ies

■ Control Type

Control Type Graphic Symbols Performance Characteristics Explanation Page

“01”Pressure Compensator Type

MO

Pressure

Out

put F

low

• When the system pressure increases and comes close to the preset cut-off pressure, the pump flow decreases automatically while maintaining the set pressure as it is.

• The output flow and full cut-off pressure can be manually adjusted.

158

“07”Pilot PressureControl TypePressureCompensator

MO

PPP

S DR

Pressure

Out

put F

low

The pump is used in combination with the pilot relief valve or multistage pressure control valve. By controlling the pilot pressure, the full cut-off pressure can be remote-controlled according to your requirements.

177

“09V”Constant PowerControl Type With External Pilot M

S

P

PP

DR0 Pressure

Out

put F

low

• This type of control can control the pump input power according to the motor output.

• When the system pressure increases, the output flow decreases, in correspondence to predetermined shaft input values.

• This type of control can enable one pump to act as two pumps (low-pressure and large-flow/high-pressure and small-flow). Therefore, the motor capacity can be reduced.

• This type of control provides the remote control of the full cut-off pressure by connecting a remote control relief valve to the pilot port “PP”.

184

“14”Load Sensing Type

PLPP

S DR

M0

PC

FC

⊿P

Pressure

Out

put F

low

• This is an energy-saving type control which maintains the pump flow and load pressure at the absolute minimum necessary level to operate the actuator.

• This type of control automatically regulates the output flow so that the inlet-outlet differential pressure of the flow control valve at the output side is constant. To do so, the load pressure must be introduced to the load sensing port “L” of the pump through the external piping.

• This type of control provides the remote control of the full cut-off pressure by connecting a remote control relief valve to the pilot port “PP”.

191

★ A flow control valve is not included with the pump. Install the valve separately.

■ Availability of Control TypeMark “○” in the table below refers to standard model.

Model Numbers Geometric Displacement cm3/rev

Control Type

“01” “07” “09V” “14”

A3HG16 16.3 ○ ○ ○

A3HG37 37.1 ○ ○ ○ ○

A3HG56 56.3 ○ ○ ○ ○

A3HG71 70.7 ○ ○ ○ ○

A3HG100 100.5 ○ ○ ○ ○

A3HG145 145.2 ○ ○ ○ ○

A3HG180 180.7 ○ ○ ○ ○

Page 6: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

158 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

Graphic Symbol

■ Specifications

Model NumbersGeometric

Displacementcm3/rev

Minimum Adjustment

Flow cm3/rev

Operating PressureMPa

Shaft Speed Ranger/min

Approx. Masskg

Rated★1 Intermittent Max.★2 Min. Flange Mtg. Foot Mtg.A3HG16-*R01K*-*C-10 16.3 8

31.5 35

3600 600 17 21A3HG37-*R01K*-*C-10

37.1 16 2700 600 26.535

A3HG37-*R01K*-*D-10 34A3HG56-*R01K*-*C-10

56.3 35 2500 60034.5 43

A3HG56-*R01K*-*D-10 32.5 40A3HG71-*R01K*-E1D-10

70.7 45 2300 60045 71

A3HG71-*R01K*-U1D/U2D/J1D-10 41.5 49A3HG100-*R01KK-E1D-10

100.5 63 2100 60056.5 81.5

A3HG100-*R01KSP-E1D-10 56 81A3HG100-*R01K*-U1D/U2D/J1D-10 56 83A3HG145-*R01KK-E1D-10

145.2 95 1800 60068.5 94.5

A3HG145-*R01KSP-E1D-10 68 94A3HG145-*R01K*-U1D/U2D/J1D-10 68 95.5A3HG180-*R01KK-E1D-10

180.7 125 1800 60088 114

A3HG180-*R01KSP-E1D-10 87.5 113.5A3HG180-*R01KK-U1D/U2D/J1D-10 87.5 115

★1. Consult Yuken when pump is used over rated pressure because there is a restriction on operating condition.★2. The maximum shaft speeds shown in the above table are at suction pressure 0 kPa.

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

M

O

■ Model Number Designation

A3HG16 -F R 01 K K -E1★1 D -10

Series Number Mounting Direction of Rotation Control Type

Pres. Adj. RangeMPa

Shaft Extension

Main Pump Mtg. FlangeConnecting Port / Pipe Flange Thread

Second Pump Mtg.

Number of Pump Mtg.

Bolts

Design Number

A3HG16(16.3 cm3/rev)

F: Flange Mtg.

L: Foot Mtg.

(Viewed from)Shaft End

R: Clockwise (Normal)

01: Pressure Compensator Type

K: 5 - 35

K: Keyed Shaft

SP: Splined Shaft

CodeMain Pump Mtg.

Flange

Connecting Port

Pipe Flange Thread

Second Pump Mtg.

E1 ISO Metric Metric ISOU1 SAE Unified Unified SAEU2 SAE BSPP Metric SAEJ1 SAE Rc Metric SAE

C: 2 10

A3HG37(37.1 cm3/rev) C: 2

D: 4

10

A3HG56(56.3 cm3/rev) 10

A3HG71(70.7 cm3/rev)

D: 4

10

A3HG100(100.5 cm3/rev) 10

A3HG145(145.2 cm3/rev) 10

A3HG180(180.7 cm3/rev) 10

★1. SAE type is also available for the second pump mounting when using ISO type for the main pump mounting flange. Consult Yuken for details.

Page 7: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

159

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

■ Pipe Flange KitsPipe flange mouting surface conforms to SAE J 518, 4 bolt split flange.Pipe flange kits are not available. Contact us for the details.

■ Test Circuit and Conditions

● Circuit

■ Result of Measurement

● ConditionsDrive Speed : 1500 r/minHydraulic Fluid : ISO VG32 OilOil Temperature : 40°C [Viscosity 32 mm2/s]

MO

SOL High Pressure Rubber Hose

OFF

Time

SOLOFF ON

t1 t2

5 MPa 5 MPa

Ps

31.5 MPa

Pres

sure

● Size of High Pressure Rubber Hose

Model High Pressure Rubber Hose

A3HG16 3/4B × 1500 mm

A3HG37/56/71 3/4B × 2000 mm

A3HG100/145 1-1/4B × 2000 mm

A3HG180 1-1/4B × 2500 mm

ModelResponse Time ms Overshoot Pressure

PsMPat1 t2

A3HG16 130 140 2.5

A3HG37 95 70 4.0

A3HG56 105 90 7.5

A3HG71 80 125 9.5

A3HG100 85 140 11.0

A3HG145 85 150 12.0

A3HG180 95 230 16.0

Response Characteristics Change in Accordance with Circuits and Operating Conditions.

Page 8: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

160 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

30

20

10

0

20

10

0

N=1500 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Pressure MPa

Inpu

t Pow

er kW

Out

put F

low L/min

Effic

ienc

y % 30

20

10

0

20

10

0

N=1800 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Pressure MPa

Inpu

t Pow

er kW

Out

put F

low L/min

Effic

ienc

y % 60

40

20

0

40

20

0

N=3600 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Pressure MPa

Inpu

t Pow

er kW

Out

put F

low L/min

Effic

ienc

y %

50 10 15 20 25 30 35

50 10 15 20 25 30 35

50 10 15 20 25 30 35

N=1500 r/min

N=1800 r/min N=3600 r/min

20

15

10

5

0

Inpu

t Pow

er kW

20

15

10

5

0

Inpu

t Pow

er kW

Inpu

t Pow

er kW

5 10 15 20 25 30 5 10 15 20 25 30

MPa35

25

15

51

15

5

1

Output Flow L/min Output Flow L/minOutput Flow L/min

MPa35

25

010 20 50 6030 40

5

10

15

20

25

30

35

40

25

15

5

1

35MPa

Full

Cut

-off

Pow

er kW

5

4

3

2

1

3600 r/min

1800 r/min

1500 r/min

Full Cut-off Pressure MPa Pressure MPa

5

4

3

2

1

3600 r/min

3600 r/min

1800 r/min

1500 r/min

1800 r/min1500 r/min

Full Cut-off

Full Flow

50 10 15 20 25 30 35 50 10 15 20 25 30 35 50 10 15 20 25 30 35

Dra

in L/min

80

70

60

50

N=1500 r/min

Full Cut-off

Full Flow

Noi

se L

evel

dB(A)

Pressure MPa50 10 15 20 25 30 35 50 10 15 20 25 30 35

Pressure MPa

80

70

60

50

N=1800 r/min

Full Cut-off

Full Flow

Noi

se L

evel

dB(A)

80

70

60

50

N=2500 r/min

Full Cut-off

Full Flow

Noi

se L

evel

dB(A)

Pressure MPa

■ Performance Characteristic Curve

■ Input Power

■ Full Cut-off Power ■ Drain

■ Noise Level [One metre horizontally away from pump head cover]

Typical Performance Characteristics of Type A3HG16 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]

★ The dotted line in the graph indicates less than minimum adjustable flow.

Page 9: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

161

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

30

20

10

0

20

10

0

N=1500 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Pressure MPa

Inpu

t Pow

er kW

Out

put F

low L/min

Effic

ienc

y % 30

20

10

0

20

10

0

N=1800 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Pressure MPa

Inpu

t Pow

er kW

Out

put F

low L/min

Effic

ienc

y % 60

40

20

0

40

20

0

N=2700 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Pressure MPa

Inpu

t Pow

er kW

Out

put F

low L/min

Effic

ienc

y %

50 10 15 20 25 30 35 50 10 15 20 25 30 35 50 10 15 20 25 30 35

35

30

25

20

15

10

5

020 25 30 35 40 45 50 55 60 20 30 40 50 60 70 80 30 40 50 60 70 80 90 100

60

50

40

30

20

10

0

N=1800 r/min60

65

50

40

30

20

10

0

N=2700 r/min

N=1500 r/min 35

20

15

10

5

3028

25

MPa

35

302825

20

15

10

5

MPa

35MPa

302825

20

15

10

5

Inpu

t Pow

er kW

Inpu

t Pow

er kW

Inpu

t Pow

er kW

Output Flow L/min Output Flow L/min Output Flow L/min

Full

Cut

-off

Pow

er kW

10

8

6

4

2

2700 r/min

1800 r/min

1500 r/min

Full Cut-off Pressure MPa

Dra

in L/min

0 5 10 15 20 25 30 35

Pressure MPa

8

10

6

4

2

2700 r/min

2700 r/min

1800 r/min1500 r/min

1800 r/min1500 r/min

Full Cut-off

Full Flow

0 5 10 15 20 25 30 35

0 5 10 15 20 25 30 35

80

70

60

50

N=1500 r/min

Full Cut-off

Full Flow

Noi

se L

evel

dB(A)

Pressure MPa0 5 10 15 20 25 30 35

80

70

60

50

N=1800 r/min

Full Cut-off

Full Flow

Noi

se L

evel

dB(A)

Pressure MPa0 5 10 15 20 25 30 35

80

70

60

50

N=2500 r/min

Full Cut-off

Full Flow

Noi

se L

evel

dB(A)

Pressure MPa

■ Performance Characteristic Curve

■ Input Power

■ Full Cut-off Power ■ Drain

■ Noise Level [One metre horizontally away from pump head cover]

Typical Performance Characteristics of Type A3HG37 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]

★ The dotted line in the graph indicates less than minimum adjustable flow.

Page 10: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

162 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

120

100

80

60

40

20

0

80

40

0

N=1500 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Pressure MPa

Inpu

t Pow

er kW

Out

put F

low L/min

Effic

ienc

y %

Pressure MPa Pressure MPa

120

80

100

20

40

60

0

80

40

0

N=1800 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Inpu

t Pow

er kW

Out

put F

low L/min

Effic

ienc

y %

60

80

100

120

140

40

20

0

40

80

120

0

N=2500 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Inpu

t Pow

er kW

Out

put F

low L/min

Effic

ienc

y %

50 10 15 20 25 30 35 50 10 15 20 25 30 35 50 10 15 20 25 30 35

60

70

50

40

30

20

40 50 60 70 80 90 100

10

0

N=1500 r/min

60

70

50

40

30

20

10

0 0

10

20

30

40

50

60

70

80

90

N=1800 r/min

N=2500 r/min

Inpu

t Pow

er kW

Inpu

t Pow

er kW

Inpu

t Pow

er kW

Output Flow L/min40 50 60 70 80 90 100 110

Output Flow L/min70 80 90 100 110 120 130 140

Output Flow L/min

510

1520252830

35

5

10

15

20

25283035MPa

MPa

5

10

15

20

25

2830

35MPa

Full

Cut

-off

Pow

er kW

10

8

6

4

2

0 5 10 15 20 25 30 35

2500 r/min

1800 r/min

1500 r/min

Full Cut-off Pressure MPa

0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

80

70

60

50

N=1500 r/min

Full Cut-off

Full Flow

Noi

se L

evel

dB(A)

Pressure MPa

80

70

60

50

N=1800 r/min

Full Cut-off

Full Flow

Noi

se L

evel

dB(A)

Pressure MPa

80

70

60

50

N=2500 r/min

Full Cut-off

Full Flow

Noi

se L

evel

dB(A)

Pressure MPa

Dra

in L/min

0 5 10 15 20 25 30 35

Pressure MPa

8

10

6

4

2

2500 r/min

2500 r/min

1800 r/min1500 r/min

1800 r/min1500 r/min

Full Cut-off

Full Flow

■ Performance Characteristic Curve

■ Input Power

■ Full Cut-off Power ■ Drain

■ Noise Level [One metre horizontally away from pump head cover]

Typical Performance Characteristics of Type A3HG56 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]

★ The dotted line in the graph indicates less than minimum adjustable flow.

Page 11: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

163

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

110

100

90

80

0

80

40

0

N=1500 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Pressure MPa

Inpu

t Pow

er kW

Out

put F

low L/min

Effic

ienc

y %

Pressure MPa Pressure MPa

120

130

100

110

80

90

0

80

40

0

N=1800 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Inpu

t Pow

er kW

Out

put F

low L/min

Effic

ienc

y %

Inpu

t Pow

er kW

120

130

140

150

160

170

0

40

80

100

0

N=2300 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Out

put F

low L/min

Effic

ienc

y %

50 10 15 20 25 30 35 50 10 15 20 25 30 35 50 10 15 20 25 30 35

050 60 70 80 90 100 110 120

10

20

30

40

50

60

70

Inpu

t Pow

er kW

Output Flow L/min

3031.5

MPa35

25

15

20

10

5

1060 70 80 90 100 110 120 130 140

10

20

30

40

50

60

70

80

Inpu

t Pow

er kW

Output Flow L/min Output Flow L/min

3031.5

MPa35

25

15

20

10

5

1

N=1500 r/min

N=1800 r/min N=2300 r/min

080 120 140 160 180100

10

20

30

40

50

60

70

80

90

100

Inpu

t Pow

er kW

3031.5

25

15

20

10

5

1

MPa

Full

Cut

-off

Pow

er kW

10

12

14

8

6

4

2

0 5 10 15 20 25 30 35

2300 r/min

1800 r/min

1500 r/min

Full Cut-off Pressure MPa

Dra

in L/min

0 5 10 15 20 25 30 35Pressure MPa

8

10

12

14

6

4

2

2300 r/min

2300 r/min

1800 r/min1500 r/min

1800 r/min1500 r/min

Full Cut-off

Full Flow

0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

80

70

60

50

N=1500 r/min

Full Cut-off

Full Flow

Noi

se L

evel

dB(A)

Pressure MPa

80

70

60

50

N=1800 r/min

Full Cut-off

Full Flow

Noi

se L

evel

dB(A)

Pressure MPa

80

70

60

50

N=2300 r/min

Full Cut-off

Full Flow

Noi

se L

evel

dB(A)

Pressure MPa

■ Performance Characteristic Curve

■ Input Power

■ Full Cut-off Power ■ Drain

■ Noise Level [One metre horizontally away from pump head cover]

Typical Performance Characteristics of Type A3HG71 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]

★ The dotted line in the graph indicates less than minimum adjustable flow.

Page 12: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

164 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

150

160

140

130

120

0

80

100

40

0

N=1500 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Pressure MPa

Inpu

t Pow

er kW

Out

put F

low L/min

Effic

ienc

y %

50 10 15 20 25 30 35Pressure MPa

180

190

160

170

140

150

0

80

120

40

0

N=1800 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Inpu

t Pow

er kW

Out

put F

low L/min

Effic

ienc

y %

50 10 15 20 25 30 35Pressure MPa

Inpu

t Pow

er kW

170

180

190

200

210

220

0

50

100

150

0

N=2100 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Out

put F

low L/min

Effic

ienc

y %

50 10 15 20 25 30 35

070 90 110 130 150

10

20

30

40

50

60

70

80

90

100

Inpu

t Pow

er kW

Output Flow L/min

3031.5

MPa35

25

15

20

10

5

1090 110 130 150 170 190

10

20

30

40

50

60

70

80

90

100

110

120

Inpu

t Pow

er kW

Output Flow L/min

3031.5

MPa35

25

15

20

10

5

10110 170 190 210 230130 150

10

20

30

40

50

6070

80

90

100

110

120

130140

Inpu

t Pow

er kW

Output Flow L/min

30

35

31.5

MPa

25

15

20

10

5

1

N=1500 r/min

N=1800 r/min N=2100 r/min

Full

Cut

-off

Pow

er kW

10

12

14

16

8

6

4

2

0 5 10 15 20 25 30 35

2100 r/min

1800 r/min

1500 r/min

Full Cut-off Pressure MPa

Dra

in L/min

0 5 10 15 20 25 30 35Pressure MPa

8

10

12

14

6

4

2

2100 r/min

2100 r/min

1800 r/min1500 r/min

1500,1800 r/minFull Cut-off

Full Flow

0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35

80

70

60

50

N=1500 r/min

Full Cut-off

Full Flow

Noi

se L

evel

dB(A)

Pressure MPa

80

70

60

50

N=1800 r/min

Full Cut-off

Full Flow

Noi

se L

evel

dB(A)

Pressure MPa

80

70

60

50

N=2100 r/min

Full Cut-off

Full Flow

Noi

se L

evel

dB(A)

Pressure MPa

■ Performance Characteristic Curve

■ Input Power

■ Full Cut-off Power ■ Drain

■ Noise Level [One metre horizontally away from pump head cover]

Typical Performance Characteristics of Type A3HG100 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]

★ The dotted line in the graph indicates less than minimum adjustable flow.

Page 13: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

165

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

180

220

140

0

100

150

50

0

N=1500 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Pressure MPa

Inpu

t Pow

er kW

Out

put F

low L/min

Effic

ienc

y %

50 10 15 20 25 30 35

200

240

280

160

0

100

150

50

0

N=1800 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Pressure MPa

Inpu

t Pow

er kW

Out

put F

low L/min

Effic

ienc

y %

50 10 15 20 25 30 35

0160 180 200 220 240 260 280

20

40

60

80

100

120

140

160In

put P

ower

kW

Output Flow L/min

30

MPa35

25

15

20

10

5

1.50120 160140 180 200 220 240

20

40

60

80

100

120

140

Inpu

t Pow

er kW

Output Flow L/min

30

MPa35

25

15

20

10

5

1.5

N=1500 r/min

N=1800 r/min

Full

Cut

-off

Pow

er kW

15

20

10

5

0 5 10 15 20 25 30 35

1800 r/min1500 r/min

Full Cut-off Pressure MPa

1800 r/min1500 r/min

1800 r/min1500 r/min

Dra

in L/min

0 5 10 15 20 25 30 35Pressure MPa

10

15

20

5

Full Cut-o

ff

Full Flow

0 5 10 15 20 25 30 35

90

80

70

60

N=1500 r/min

Full Cut-off

Noi

se L

evel

dB(A)

Pressure MPa

Full Flow

0 5 10 15 20 25 30 35

90

80

70

60

N=1800 r/min

Full Cut-off

Noi

se L

evel

dB(A)

Pressure MPa

Full Flow

■ Performance Characteristic Curve

■ Input Power

■ Full Cut-off Power ■ Drain

■ Noise Level [One metre horizontally away from pump head cover]

Typical Performance Characteristics of Type A3HG145 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]

★ The dotted line in the graph indicates less than minimum adjustable flow.

Page 14: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

166 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

240

280

200

0

160

80

0

N=1500 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Pressure MPaIn

put P

ower kW

Out

put F

low L/min

Effic

ienc

y %

50 10 15 20 25 30 35

260

300

340

220

0

160

240

80

0

N=1800 r/min100

80

60

Volumetric Efficiency

Output Flow

Overall Efficiency

Input Power

Pressure MPa

Inpu

t Pow

er kW

Out

put F

low L/min

Effic

ienc

y %

50 10 15 20 25 30 35

0150 200 225175 250 275 300

20

40

60

80

100

120

140

160

180

Inpu

t Pow

er kW

Output Flow L/min

3031.5

MPa35

25

15

20

10

5

1.50200 225 250 275 300 325 350

20

40

60

80

100

120

140

160

180

200

Inpu

t Pow

er kW

Output Flow L/min

3031.5MPa

35

25

15

20

10

5

2

N=1500 r/min

N=1800 r/min

Full

Cut

-off

Pow

er kW

20

12

16

4

8

0 5 10 15 20 25 30 35

1800 r/min1500 r/min

Full Cut-off Pressure MPa

1800 r/min1500 r/min

1800 r/min1500 r/min

Dra

in L/min

0

5

5 10 15 20 25 30 35

Pressure MPa

10

15

20

Full Cut-off

Full Flow

0 5 10 15 20 25 30 35

90

80

70

60

N=1500 r/min

Full Cut-off

Noi

se L

evel

dB(A)

Pressure MPa

Full Flow

0 5 10 15 20 25 30 35

90

80

70

60

N=1800 r/min

Full Cut-off

Noi

se L

evel

dB(A)

Pressure MPa

Full Flow

■ Performance Characteristic Curve

■ Input Power

■ Full Cut-off Power ■ Drain

■ Noise Level [One metre horizontally away from pump head cover]

Typical Performance Characteristics of Type A3HG180 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]

★ The dotted line in the graph indicates less than minimum adjustable flow.

Page 15: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

167

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

■ Flange Mtg.:A3HG16-FR01KK-E1C/U1C/U2C/J1C

■ Foot Mtg.:A3HG16-LR01KK-E1C/U1C/U2C/J1C

10

166.5

46

212.5

11

130

28

23.8

166.5

26.2

50.8

76.5 61.5

52.4

45°

45°

105

79E

L95 Dia.

Suction Port

4 Places

4 Places

Discharge Port26 Dia.

19 Dia.

Pressure Adj. Screw13 Hex.Gasket

End Cover

Plain WasherSoc. Hd. Cap Screw

Flow Adj. Screw13 Hex.

Drain Port 22 Hex. Head Plug FurnishedFilling Port★1

★1. Install the pump so that the “Filling Port” is at the top.

Fully Extended

★4

★4. Drain port conforms to ISO 1179-1, BSPP threads.

“C” Thd.

DIN332-R3.15×6.7Center Hole

(71)

90°

114

D

K

8110

9.5

221

N

81

71

79.5

74.5

6.4

18 +0.008 -0.003 20.5 +0.008

-0.133 80 0-0.046

0-0.036

F D

ia.

H

J D

ia.

Surface ofDischarge Port

Surface ofSuction Port

“A” Thd. “B” Deep

“A” Thd. “B” Deep

Adapter

Rc1/2 Thd.

Tightening torque : 75 - 83 N·m

Bonded Seal

30 Hex

G1/2 Thd.

31

0 -0.2 Dia.29.5

17

(71)

90°

1

Max. 21 Dia.

7/8-14 UNF Thd.

Tightening torque : 75 - 83 N·m

Bonded Seal

30 Hex.SAE #10

G1/2 Thd.

Adapter

31

+0.

4

0 +0.1 0 Dia.

Detail of Adapter Port

15゚

45゚

23.92.

5

16.5

0-0.1621.24 0-0.1621.24 0-0.1621.24

0-0.0582.55 0-0.0582.55 0-0.0582.55

+0.03 0 +0.03 0

4.76

+0.03 04.76

4.76

24 Dia. Spotface12 Dia. Through

4 Places

35

M

18

75

93

70

95

1618

.520

4.5

13

120

5

190

232

203Attachment Side

Model Numbers M

A3HG16-LR01KK-U1C/U2C/J1C

A3HG16-LR01KK-E1C 33

38

● For other dimensions, refer to “Flange Mtg.”.

Model Numbers A B C

A3HG16-FR01KK-U1C

A3HG16-FR01KK-E1C

A3HG16-FR01KK-J1C

A3HG16-FR01KK-U2C M10

M10

M10

19

19 36

G 1/2

G 1/2

G 1/2

M22×1.5

41

41

4119

173/8-16 UNC

D E F H L NJ K

22 28 109

106

106

106

28 33

33

33

28

28

0-0.0319.05 0-0.0319.05 0-0.0319.05

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

For Port/Flange Code “U1/J1”, Adapter and bonded seal are attached. After installing the bonded seal at the drain port tighten the adapter■ Drain Port

★2

★3

★3. Adapter port conforms to SAE J 514, O-Ring seals.★2. Drain port conforms to ISO 9974-1, metric threads.

Detail of Drain Port

Detail of Drain Port

● Detail:A3HG16-FR01KK-E1C

● Detail:A3HG16-FR01KK-U2C

● Accessories:A3HG16-FR01KK-U1C

● Accessories:A3HG16-FR01KK-J1C

DEC.

INC.

Max. 22.2 Dia.

35 Dia.

Page 16: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

168 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

★1. Install the pump so that the “Filling Port” is at the top.

■ Flange Mtg. Two Bolts:A3HG37-FR01KK-E1C/U1C/U2C/J1C

“P” Deep“N” Thd.

E71.5

247.5 D

273

57.2

27.8

198

16.5

R

9112

0.5

85

X

View Arrow X

85

13L

93.5

Q

F

13.5

28122

174

Flow Adj. Screw17 Hex.

Surface ofDischarge PortSuction Port

Surface of 22 Hex. Head Plug FurnishedFilling Port ★1

Drain Port “C” Thd.

Seal CoverEnd Cover

Discharge Port24 Dia.

4 Places“A1” Thd. “B1” Deep

H D

ia.

J

K D

ia.

Pressure Adj. Screw13 Hex.

4 Places

“A2” Thd. “B2” Deep

198

30.2

58.7

Suction Port32 Dia.

120 Dia.

90°

90°

35 Dia.

0.5

(93.

5)

★2. Drain port conforms to ISO 9974-1, metric threads.

Max. 22.2 Dia.45゚16

.5

31

7/8-14 UNF Thd.SAE #10

Tightening torque : 75 - 83 N·m

30 Hex.

G 1/2 Thd. Bonded Seal

Detail of Adapter PortAdapter

(93.

5)

0.5

Adapter

Rc1/2 Thd.

Tightening torque : 75 - 83 N·m

Bonded Seal

30 Hex.

G1/2 Thd.

31

■ Foot Mtg. Two Bolts:A3HG37-LR01KK-E1C/U1C/U2C/J1CModel Numbers S

A3HG37-LR01KK-U1C/U2C/J1C

A3HG37-LR01KK-E1C 44

38

240288

19

21.5

235.

5

16 152

5115

102

100 44

121 S

251Attachment Side

22

28 Dia. Spotface14 Dia. Through

4 Places

● For other dimensions, refer to “Flange Mtg. Two Bolts”.

+0.1 0 Dia.23.915゚ +

0.4

0

2.5

Plain WasherHex. Hd. Screw

0 -0.2 Dia.29.5

Max. 21 Dia.

For Port/Flange Code “U1/J1”, Adapter and bonded seal are attached. After installing the bonded seal at the drain port tighten the adapter■ Drain Port

● Detail:A3HG37-FR01KK-E1C ● Accessories:A3HG37-FR01KK-U1C

★2Detail of Drain Port

Detail of Drain Port

● Detail:A3HG37-FR01KK-U2C ● Accessories:A3HG37-FR01KK-J1C

★4

★4. Drain port conforms to ISO 1179-1, BSPP threads.

★3. Adapter port conforms to SAE J 514, O-Ring seals.

★3

Fully Extended

25 +0.009-0.004 28 +0.009

-0.294 100 0-0.054

0-0.0368

0-0.1828.18

28.18

28.18

0-0.18 0-0.18

0-0.05101.6

101.6

101.6

0-0.05 0-0.05

+0.03 0 +0.03 0 +0.03 0

6.35

6.35

6.35

Model Numbers A1 A2 B1 B2 C

A3HG37-FR01KK-U1C

A3HG37-FR01KK-E1C

A3HG37-FR01KK-J1C

A3HG37-FR01KK-U2C M10

M10

M12

M12

M12

M10 M8 19

16

16

16

1822

1822

1822

52

G 1/2

G 1/2

G 1/2

M22×1.5

46

46

46

207/16-14 UNC

D E F H P Q RJ K L N

9 36

32

32

32

42 140

146

146

146

9.7

9.7

9.7

38

38

38

0-0.0525.4

25.4

25.4

0-0.05 0-0.05

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

1/4-20 UNC

DEC.INC.

Page 17: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

169

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

Flow Adj. Screw17 Hex.

Drain Port

57

233

258.5

57.2

27.8

183.5

13.5

146

16.5

154

9012

0.5

85 85

2813

93.5

View Arrow X183.5

4 Places

58.7

“A2” Thd. “B2” Deep

30.2

Suction Port32 Dia.

■ Flange Mtg. Four Bolts:A3HG37-FR01KK-E1D/U1D/U2D/J1D

★1. Install the pump so that the “Filling Port” is at the top.

32 +0.018 +0.002 35 +0.018

- 0.288 125 0-0.063

0-0.03610

0-0.1835.32 0-0.1835.32 0-0.1835.32

0-0.05127

127

127

0-0.05 0-0.05

+0.03 0

+0.03 0 +0.03 0

7.94

7.94

7.94

Model Numbers A1 A2 B1 B2 C

A3HG37-FR01KK-U1D

A3HG37-FR01KK-E1D

A3HG37-FR01KK-J1D

A3HG37-FR01KK-U2D M10

M10

M12

M12

M12

M10 M10 22

19

19

19

1822

1822

1822

60

G 1/2

G 1/2

G 1/2

M22×1.5

56

56

56

207/16-14 UNC

D E F H P QJ K L N

9 50 113.2

114.5

114.5

114.5

12.7

12.7

12.7

48

48

48

31.75 0-0.05

31.75 0-0.05

31.75 0-0.05

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

5/16-18 UNC

Suction PortSurface of Surface of

Discharge Port

X

22 Hex. Head Plug FurnishedFilling Port★1

“C” Thd.D

E

40

P

Q

K

F D

ia.

H

QJ D

ia.

“N” Deep“L” Thd.

Seal CoverEnd Cover

Plain WasherHex. Hd. Screw

Discharge Port24 Dia.

4 Places“A1” Thd. “B1” Deep

236.5Attachment Side

Pressure Adj. Screw13 Hex.

90°

35 Dia.

0.5

(93.

5)

★2. Drain port conforms to ISO 9974-1, metric threads.

Max. 22.2 Dia.45゚16

.5

31

7/8-14 UNF Thd.SAE #10

Tightening torque : 75 - 83 N·m

30 Hex.

G1/2 Thd. Bonded Seal

★3. Adapter port conforms to SAE J 514, O-Ring seals.

★3Detail of Adapter PortAdapter

Dia.23.915゚+0.

4 0

2.

5

Adapter

Rc1/2 Thd.

Tightening torque : 75 - 83 N·m

Bonded Seal

30 Hex.

G1/2 Thd.

31

90°

(93.

5)

0.5

★4. Drain port conforms to ISO 1179-1, BSPP threads.

0 -0.2 Dia.29.5

Max. 21 Dia.

■ Foot Mtg. Four Bolts:A3HG37-LR01KK-E1D/U1D/U2D/J1D

100 27

123 R

150

230

278

19

22

23

270.

5

28 Dia. Spotface14 Dia. Through

4 Places

Model Numbers R

A3HG37-LR01KK-U1D/U2D/J1D

A3HG37-LR01KK-E1D 65

61

16

158

3

● For other dimensions, refer to “Flange Mtg. Four Bolts”.

For Port/Flange Code “U1/J1”, Adapter and bonded seal are attached. After installing the bonded seal at the drain port tighten the adapter■ Drain Port

● Detail:A3HG37-FR01KK-E1D

★2Detail of Drain Port

● Accessories:A3HG37-FR01KK-U1D

● Detail:A3HG37-FR01KK-U2D ● Accessories:A3HG37-FR01KK-J1D

Detail of Drain Port★4

+0.1 0

DEC.INC.Fully Extended

Page 18: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

170 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

Detail of Drain Port★4

★1. Install the pump so that the “Filling Port” is at the top.

25 +0.009-0.004 28 +0.009

-0.294 100 0-0.054

0-0.0368

0-0.1828.18

28.18

28.18

0-0.18 0-0.18

0-0.05101.6

101.6

101.6

0-0.05 0-0.05

+0.03 0 +0.03 0

6.35

6.35

6.35 +0.03 0

Model Numbers A1 A2 B1 B2 C

A3HG56-FR01KK-U1C

A3HG56-FR01KK-E1C

A3HG56-FR01KK-J1C

A3HG56-FR01KK-U2C M12

M12

M12

M12

M12

M12 M8 19

16

16

16

2222

2222

2222

52

G 3/4

G 3/4

G 3/4

M27×2

46

46

46

20 217/16-14 UNC

1/2-13UNC

D E F H P Q RJ K L N

9 36

32

32

32

42 140

146

146

146

9.7

9.7

9.7

38

38

38

0-0.0525.4

25.4

25.4

0-0.05 0-0.05

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

1/4-20 UNC

View Arrow X

■ Flange Mtg. Two Bolts:A3HG56-FR01KK-E1C/U1C/U2C/J1C

13

78.5

106.

5

271

300

27.8

223

278

57.2

140.

510

2

8585

9119

174

28

13.5

122

X

223

69.9

35.7Suction Port38 Dia.4 Places

“A2” Thd. “B2” Deep

Suction PortSurface of

Flow Adj. Screw17 Hex.

Surface ofDischarge Port

22 Hex. Head Plug FurnishedFilling Port★1

Seal CoverEnd Cover

Discharge Port26 Dia.

Plain WasherHex. Hd. Screw

4Places“A1” Thd. “B1” Deep

Drain Port “C” Thd.

D

E

F

L

H D

ia.

J

K D

ia.

“P” Deep“N” Thd.

Attachment Side

R

Q

Pressure Adj. Screw13 Hex.

120 Dia.

90°

90°

50 Dia. Dia.

0.5

(106

.5)

0.5

(106

.5)

Max. 27.2 Dia.

Max. 26.5 Dia.

★2. Drain port conforms to ISO 9974-1, metric threads.

45゚

1-1/16-12UN

33

SAE #12

Tightening torque : 147 - 162 N·m

36 Hex.

G3/4 Thd. Bonded Seal

33

Tightening torque : 147 - 162 N·m

36 Hex.

G3/4 Thd. Bonded Seal

+0.1 029.215゚

19 +

0.4

0

3.3

★3Detail of Adapter PortAdapter

Adapter

★3. Adapter port conforms to SAE J 514, O-Ring seals.

★4. Drain port conforms to ISO 1179-1, BSPP threads.

Rc3/4 Thd.

■ Foot Mtg. Two Bolts:A3HG56-LR01KK-E1C/U1C/U2C/J1C

● For other dimensions, refer to “Flange Mtg. Two Bolts”.

240

288

19

21.5

255.

5

152

5115

102

100 44

121 S

16

22

28 Dia. Spotface14 Dia. Through

4 Places

Model Numbers S

A3HG56-LR01KK-U1C/U2C/J1C

A3HG56-LR01KK-E1C 44

38

0 -0.2 Dia.35.5

For Port/Flange Code “U1/J1”, Adapter and bonded seal are attached. After installing the bonded seal at the drain port tighten the adapter■ Drain Port

● Detail:A3HG56-FR01KK-E1C ● Accessories:A3HG56-FR01KK-U1C

● Detail:A3HG56-FR01KK-U2C ● Accessories:A3HG56-FR01KK-J1C

★2Detail of Drain Port

DEC.INC.Fully Extended

Page 19: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

171

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

40

13

53.5

106.

5

246275

27.8

198

57.2

140.

510

2

8585

91

146

2813.5

154

19

■ Flange Mtg. Four Bolts:A3HG56-FR01KK-E1D/U1D/U2D/J1D

★1. Install the pump so that the “Filling Port” is at the top.198

69.9

35.7Suction Port38 Dia.4 Places

“A2” Thd. “B2” Deep

Suction PortSurface of

Flow Adj. Screw17 Hex.

Surface ofDischarge Port

22 Hex. Head Plug FurnishedFilling Port★1

D

E

Model Numbers A1 A2 B1 B2 C

A3HG56-FR01KK-U1D

A3HG56-FR01KK-E1D

A3HG56-FR01KK-J1D

A3HG56-FR01KK-U2D M12

M12

M12

M12

M12

M12 2222

2222

2222

60

G 3/4

G 3/4

G 3/4

M27×2

56

56

56

20 217/16-14 UNC

1/2-13UNC

D E F H P QJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

View Arrow X

Drain Port “C” Thd.

F D

ia.

H

QJ D

ia.

K

Q

P

“N” Deep“L” Thd.

Seal CoverEnd Cover

Plain WasherHex. Hd. Screw

Discharge Port26 Dia.

4 Places“A1” Thd. “B1” Deep

253Attachment Side

Pressure Adj. Screw13 Hex.

32 +0.018+0.002 35 +0.018

- 0.288 125 0-0.063

0-0.18 0-0.1835.32

35.32

0-0.1835.32

0-0.05127

127

127

0-0.05 0-0.05

50

48

48

48

31.75 0-0.05

31.75 0-0.05

31.75 0-0.05

0-0.03610

+0.03 0

+0.03 0 +0.03 0

7.94

7.94

7.94

M10 22

19

19

19

113.2

114.5

114.5

114.5

5/16-18 UNC

90°

90°

50 Dia. Dia.

0.5

(106

.5)

0.5

(106

.5)

Max. 27.2 Dia.

Max. 26.5 Dia.

★2. Drain port conforms to ISO 9974-1, metric threads.

45゚

1-1/16-12UN

33

SAE #12

Tightening torque : 147 - 162 N·m

36 Hex.

G3/4 Thd. Bonded Seal

33

Tightening torque : 147 - 162 N·m

36 Hex.

G3/4 Thd. Bonded Seal

+0.1 029.215゚

19 +

0.4

0

3.3

★3Detail of Adapter PortAdapter

Adapter

★3. Adapter port conforms to SAE J 514, O-Ring seals.

★4. Drain port conforms to ISO 1179-1, BSPP threads.

Rc3/4 Thd. 0 -0.2 Dia.35.5

R

100 27

123

150

230

278

19

22

16 23

290.

5

3

Model Numbers R

A3HG56-LR01KK-U1D/U2D/J1D

A3HG56-LR01KK-E1D 65

61

■ Foot Mtg. Four Bolts:A3HG56-LR01KK-E1D/U1D/U2D/J1D

158

28 Dia. Spotface14 Dia. Through

4 Places

● For other dimensions, refer to “Flange Mtg. Four Bolts”.

X

For Port/Flange Code “U1/J1”, Adapter and bonded seal are attached. After installing the bonded seal at the drain port tighten the adapter■ Drain Port

● Detail:A3HG56-FR01KK-E1D ● Accessories:A3HG56-FR01KK-U1D

● Detail:A3HG56-FR01KK-U2D ● Accessories:A3HG56-FR01KK-J1D

Detail of Drain Port★4

★2Detail of Drain Port

Fully ExtendedDEC.

INC.

Page 20: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

172 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

■ Flange Mtg.:A3HG71-FR01KK-E1D/U1D/U2D/J1D

Model Numbers A B C

A3HG71-FR01KK-U1D

A3HG71-FR01KK-E1D

A3HG71-FR01KK-J1D

A3HG71-FR01KK-U2D

M12

M12

M12

22

22

22

60

G 3/4

G 3/4

G 3/4

M27×2

56

56

56

211/2-13 UNC

D E F H P Q R SJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

32 +0.018+0.002 35+0.018

-0.288 160 0-0.063

0-0.18 0-0.1835.32

35.32

0-0.1835.32

0-0.05127

127

127

0-0.05 0-0.05

50

48

48

48

31.75 0-0.05

31.75 0-0.05

31.75 0-0.05

0-0.03610

+0.03 0 +0.03 0 +0.03 0

7.94

7.94

7.94

M10 22

19

19

19

190

143

143

143

141.4

114.5

114.5

114.5

18

13.5

13.5

13.5

T U

35

28

28

28

192

155

155

155

5/16-18 UNC

Case Drain Port5 Hex. Soc.

1940

18

61

116.

5

270296.5

31.8223.5

274.5

66.7

102102

150.

511

4

42.9

223.5

77.8

Suction Port51 Dia.4 Places

“A” Thd. “B” Deep

View Arrow X

Suction PortSurface of

Flow Adj. Screw17 Hex.

Surface ofDischarge Port 22 Hex. Head Plug Furnished

Filling Port★1

Drain Port “C” Thd.

D

E

F D

ia.

H

Q R

J D

ia.

K

R

U

S T“N” Deep“L” Thd.

Attachment Side

Seal CoverEnd Cover

Plain WasherHex. Hd. Screw

Discharge Port34 Dia.

4 Places“A” Thd. “B” Deep

P

Pressure Adj. Screw13 Hex.

X

★2. Drain port conforms to ISO 9974-1, metric threads.

90°

50 Dia. Dia.

0.5

(116

.5)

Max. 27.2 Dia.

★3Detail of Adapter PortAdapter

★3. Adapter port conforms to SAE J 514, O-Ring seals.

33

1-1/16-12UNSAE #12

Tightening torque : 147 - 162 N·m

36 Hex.

G3/4 Thd. Bonded Seal45゚

+0.1 029.215゚

19 +

0.4

0

3.3

★4. Drain port conforms to ISO 1179-1, BSPP threads.

90°

0.5

(116

.5)

Max. 26.5 Dia.

0 -0.2 Dia.35.5

Adapter

33

Tightening torque : 147 - 162 N·m

36 Hex.

G3/4 Thd. Bonded Seal

Rc3/4 Thd.

■ Foot Mtg.:A3HG71-LR01KK-E1D/U1D/U2D/J1D

● For other dimensions, refer to “Flange Mtg.”.

Y Z

a

W

b jk

g

Model Numbers V

A3HG71-LR01KK-U1D/U2D/J1D

A3HG71-LR01KK-E1D 32

22

W

210

150

X

29

16

Y

140

100

Z

45

27

a

175

123

b

73

61

c

360.5

300.5

Model Numbers d

A3HG71-LR01KK-U1D/U2D/J1D

A3HG71-LR01KK-E1D 22

14

e

43

28

f

37

23

g

32

19

h

198

158

j

330

230

k

398

278“e” Dia. Spotface“d” Dia. Through

4 Places

X

V

f

c

3

h

★1. Install the pump so that the “Filling Port” is at the top.

For Port/Flange Code “U1/J1”, Adapter and bonded seal are attached. After installing the bonded seal at the drain port tighten the adapter■ Drain Port

● Detail:A3HG71-FR01KK-E1D ● Accessories:A3HG71-FR01KK-U1D

● Detail:A3HG71-FR01KK-U2D ● Accessories:A3HG71-FR01KK-J1D

★2Detail of Drain Port

Detail of Drain Port ★4

Pipe Flange Threads

Connecting Port

Fully ExtendedDEC.

INC.

Page 21: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

173

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

■ Flange Mtg.:A3HG100-FR01KK-E1D/U1D/U2D/J1D

Model Numbers A B C

A3HG100-FR01KK-U1D

A3HG100-FR01KK-E1D

A3HG100-FR01KK-J1D

A3HG100-FR01KK-U2D

M12

M12

M12

22

22

22

80

G 3/4

G 3/4

G 3/4

M27×2

62

62

62

211/2-13 UNC

D E F H P Q R SJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

+0.018+0.002

+0.018- 0.288 180 0

-0.063

0-0.18 0-0.18 0-0.18

0-0.05152.4

152.4

152.4

0-0.05 0-0.05

70

54

54

54

0-0.05 0-0.05 0-0.05

0-0.04312

+0.03 0 +0.03 0

9.53

9.53

9.53 +0.03 0

M12 28

28

28

28

158.4

161.6

161.6

161.6

18

21.5

21.5

21.5

T

35

39

39

39

7/16-14 UNC

Case Drain Port5 Hex. Soc.

23

287

62.5

129

322

17.5

243

31.8

210

210

66.7

163

112.5112.5

118.

5

X

88.9

50.8Suction Port63 Dia.

View Arrow X

4 Places

“A” Thd. “B” Deep

Suction PortSurface of

Flow Adj. Screw17 Hex.

Surface ofDischarge Port 27 Hex. Head Plug Furnished

Filling Port★1

Drain Port “C” Thd.D

E

L

F

56

45

45

45

40

38.1

38.1

38.1

43

42.36

42.36

42.36H

Dia

.J

R

K D

ia.

“P” Deep“N” Thd.

300Attachment Side

Seal CoverEnd Cover

Discharge Port34 Dia.

4 Places“A” Thd. “B” Deep

★1. Install the pump so that the “Filling Port” is at the top.

Q

R

S T

Pressure Adj. Screw13 Hex.

★2. Drain port conforms to ISO 9974-1, metric threads.

90°

50 Dia.

0.5

(129

)

Max. 27.2 Dia.

Dia.

★3Detail of Adapter PortAdapter

★3. Adapter port conforms to SAE J 514, O-Ring seals.

33

1-1/16-12UNSAE #12

Tightening torque : 147 - 162 N·m

36 Hex.

G3/4 Thd. Bonded Seal45゚

+0.1 029.215゚

19 +

0.4

0

3.3

★4. Drain port conforms to ISO 1179-1, BSPP threads.

90°

0.5

(129

)

Max. 26.5 Dia.

0 -0.2 Dia.35.5

Adapter

33

Tightening torque : 147-162 N·m

36 Hex.

G3/4 Thd. Bonded Seal

Rc3/4 Thd.

■ Foot Mtg.:A3HG100-LR01KK-E1D/U1D/U2D/J1D

Model Numbers U

A3HG100-LR01KK-U1D/U2D/J1D

A3HG100-LR01KK-E1D 93

75

U

140 45

32

175

210

373

330

398

198323729

43 Dia. Spotface22 Dia. Through

4 Places

3

● For other dimensions, refer to “Flange Mtg.”.

Plain WasherHex. Hd. Screw

243

For Port/Flange Code “U1/J1”, Adapter and bonded seal are attached. After installing the bonded seal at the drain port tighten the adapter■ Drain Port

● Detail:A3HG100-FR01KK-E1D ● Accessories:A3HG100-FR01KK-U1D

★2Detail of Drain Port

● Detail:A3HG100-FR01KK-U2D ● Accessories:A3HG100-FR01KK-J1D

Detail of Drain Port ★4

Fully ExtendedDEC. INC.

Page 22: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

174 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

Case Drain Port5 Hex. Soc.

26

210

220

138.

5

74

321.5

22

266.5

323.5

31.8

66.7

345.5

123

172.

512

9

■ Flange Mtg.:A3HG145-FR01KK-E1D/U1D/U2D/J1D

Model Numbers A B C

A3HG145-FR01KK-U1D

A3HG145-FR01KK-E1D

A3HG145-FR01KK-J1D

A3HG145-FR01KK-U2D

M12

M12

M12

22

22

22

92

G 3/4

G 3/4

G 3/4

M27×2

75

75

75

211/2-13 UNC

D E F H P Q R SJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

+0.018+0.002

+0.018- 0.288 180 0

-0.063

0-0.18 0-0.18 0-0.18

0-0.05152.4

152.4

152.4

0-0.05 0-0.05

82

67

67

67

0-0.05 0-0.05 0-0.05

0-0.04314

+0.03 0 +0.03 0 +0.03 0

11.11

11.11

11.11

M16 36

32

32

32

158.4

161.6

161.6

161.6

18

21.5

21.5

21.5

T

35

39

39

39

1/2-13 UNC

70

56

56

56

45

44.45

44.45

44.45

48.5

49.39

49.39

49.39

★1. Install the pump so that the "Filling Port" is at the top.View Arrow X

88.9

50.8Suction Port63 Dia.

4 Places

“A” Thd. “B” Deep

Suction PortSurface of

Flow Adj. Screw19 Hex.

Surface ofDischarge Port

L

E

D

27 Hex. Head Plug FurnishedFilling Port★1

Drain Port “C” Thd.

F

H D

ia.

JK

Dia

.

Attachment Side

Seal CoverEnd Cover

Discharge Port34 Dia.

4 Places“A” Thd. “B” Deep

“P” Deep“N” Thd.

Q

R

R

S T

Pressure Adj. Screw13 Hex.

★2. Drain port conforms to ISO 9974-1, metric threads.

90°

50 Dia.

0.5

(138

.5)

Dia.

★3Detail of Adapter PortAdapter

Adapter port conforms to SAE J 514, O-Ring seals.★3.

33

1-1/16-12UNSAE #12

Tightening torque : 147 - 162 N·m

36 Hex.

G3/4 Thd. Bonded Seal45゚

+0.1 029.215゚

19 +

0.4

0

3.3

★4. Drain port conforms to ISO 1179-1, BSPP threads.

90°

0.5

(138

.5)

0 -0.2 Dia.35.5

Adapter

33

Tightening torque : 147 - 162 N·m

36 Hex.

G3/4 Thd. Bonded Seal

Rc3/4 Thd.

■ Foot Mtg.:A3HG145-LR01KK-E1D/U1D/U2D/J1DModel Numbers U

A3HG145-LR01KK-U1D/U2D/J1D

A3HG145-LR01KK-E1D 45

28

200 35

235 330

398

212

140

32

210

● For other dimensions, refer to “Flange Mtg.”.

U

29

32

3

198

43 Dia. Spotface22 Dia. Through

4 Places

37

382.

5

X

246

Plain WasherHex. Hd. Screw

266.5

For Port/Flange Code “U1/J1”, Adapter and bonded seal are attached. After installing the bonded seal at the drain port tighten the adapter■ Drain Port

● Detail:A3HG145-FR01KK-E1D ● Accessories:A3HG145-FR01KK-U1D

● Detail:A3HG145-FR01KK-U2D ● Accessories:A3HG145-FR01KK-J1D

★2Detail of Drain Port

Detail of Drain Port★4

Pipe Flange Threads

Connecting Port

Fully Extended123

Max. 27.2 Dia.

Max. 26.5 Dia.

DEC. INC.

Page 23: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

175

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

■ Flange Mtg.:A3HG180-FR01KK-E1D/U1D/U2D/J1D

Model Numbers A B C

A3HG180-FR01KK-U1D

A3HG180-FR01KK-E1D

A3HG180-FR01KK-J1D

A3HG180-FR01KK-U2D

M16

M16

M16

29

29

29

92

G 3/4

G 3/4

G 3/4

M27×2

75

75

75

295/8-11 UNC

D E F H P Q R SJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

+0.018 +0.002

+0.018- 0.288 180 0

-0.063

0-0.18 0-0.18 0-0.18

0-0.05152.4

152.4

152.4

0-0.05 0-0.05

82

67

67

67

0-0.05 0-0.05 0-0.05

0-0.04314

+0.03 0 +0.03 0 +0.03 0

11.11

11.11

11.11

M16 36

32

32

32

158.4

161.6

161.6

161.6

18

21.5

21.5

21.5

T

35

39

39

39

1/2-13 UNC

70

56

56

56

45

44.45

44.45

44.45

48.5

49.39

49.39

49.39

★1. Install the pump so that the “Filling Port” is at the top.

Case Drain Port5 Hex. Soc.

27.5

210

220

86352.5

24

297.536.5

79.4

148

384.5

190

138

129129

X

297.5

61.9

106.

4

View Arrow X

Suction Port76 Dia.

4 Places

“A” Thd. “B” Deep

Flow Adj. Screw19 Hex.

Suction PortSurface of Surface of

Discharge Port

L

E

F

D

27 Hex. Head Plug FurnishedFilling Port★1

Drain Port “C” Thd.

H D

ia.

J

K D

ia.

“P” Deep“N” Thd.

362.5Attachment Side

Seal CoverEnd Cover

Plain WasherHex. Hd. Screw

Discharge Port44 Dia.

4 Places“A” Thd. “B” Deep

Pressure Adj. Screw13 Hex.

Q

R

R

S T

★2. Drain port conforms to ISO 9974-1, metric threads.

90°

50 Dia.

0.5

(148

)

Max. 27.2 Dia.

Dia.

★3Detail of Adapter PortAdapter

★3. Adapter port conforms to SAE J 514, O-Ring seals.

33

1-1/16-12UNSAE #12

Tightening torque : 147 - 162 N·m

36 Hex.

G3/4 Thd. Bonded Seal45゚

+0.1 029.215゚

19 +

0.4

0

3.3

★4. Drain port conforms to ISO 1179-1, BSPP threads.

90°

0.5

(148

)

Max. 26.5 Dia.

0 -0.2Dia.35.5

Adapter

33

Tightening torque : 147 - 162 N·m

36 Hex.

G3/4 Thd. Bonded Seal

Rc3/4 Thd.

■ Foot Mtg.:A3HG180-LR01KK-E1D/U1D/U2D/J1D

Model Numbers U

A3HG180-LR01KK-U1D/U2D/J1D

A3HG180-LR01KK-E1D 45

28

● For other dimensions, refer to “Flange Mtg.”.

200 35

235

246

330

398

212

140

3229

210

U

3740

0

3

198

32

43 Dia. Spotface22 Dia. Through

4 Places

For Port/Flange Code “U1/J1”, Adapter and bonded seal are attached. After installing the bonded seal at the drain port tighten the adapter■ Drain Port

● Detail:A3HG180-FR01KK-E1D ● Accessories:A3HG180-FR01KK-U1D

★2Detail of Drain Port

● Detail:A3HG180-FR01KK-U2D ● Accessories:A3HG180-FR01KK-J1D

Detail of Drain Port ★4

Fully ExtendedDEC. INC.

Page 24: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

176 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

■ Spear Parts List

A3HG*-*R01KK

X

X

A3HG16 A3HG37/56/71A3HG100/145/180

Y

Y

2

5

12 1110137

3

6

9

1414141615

418

Detail of Section X – X Detail of Section Y – Y

Accessories

■ List of Seals and Bearings

Item Name of PartsPart Numbers

Q'ty.A3HG16 A3HG37 A3HG56 A3HG71 A3HG100 A3HG145 A3HG180

1 Gasket Z150-2270-PK314095-1

Z800-2271-PK314517-4

Z800-2272-PK314506-7

2283-PK212657-1

2284-PK212655-5

2285-PK212635-7

2286-PK212656-3 1

2 Back Up Ring — 1310E-PK412440-0 1

3Tapered Roller Bearing — HR33007J 4T-33008 33009JR 4T-30210 HR33011 —

1Cylindrical Roller Bearing NUP205E — — — — — 2276-

PK412859-1

4Tapered Roller Bearing — 4T-33005 4T-33205R 4T-33205 4T-33206 4T-33206 —

1Needle Roller Bearing HMK2030V3 — — — — — 2276-

PK412860-9

5 Oil Seal TCN254511(FKM)

TCN355511(FKM)

TCN355511(FKM)

TCN355511(FKM)

TCN507212(FKM)

TCN557812(FKM)

TCN557812(FKM) 1

6 Bonded Seal★ KP-C-04(FKM)

KP-C-04(FKM)

KP-C-05(FKM)

KP-C-05(FKM)

KP-C-05(FKM)

KP-C-05(FKM)

KP-C-05(FKM) 1

7 O-Ring S65(FKM-70)

S85(FKM-70)

S95(FKM-70)

S100(FKM-70)

S110(FKM-70)

S125(FKM-70)

S130(FKM-70) 1

8 O-Ring, Gasket 2280-PK413358-3

S80(FKM-70)

S80(FKM-70)

S80(FKM-70)

S80(FKM-70)

S80(FKM-70)

S80(FKM-70) 1

9 O-Ring SO-FB-A139 SO-FA-G70 SO-FA-G75 SO-FA-G80 SO-FA-G95 SO-FA-G95 SO-FA-G105 1

10 O-Ring SO-FB-P14 SO-FB-P18 SO-FB-P21 SO-FB-P24 SO-FB-P24 SO-FB-P26 SO-FB-P26 1

11 O-Ring SO-FB-P14 SO-FB-P14 SO-FB-P14 SO-FB-P14 SO-FB-P18 SO-FB-P18 SO-FB-P18 1

12 O-Ring SO-FB-P6 SO-FB-P8 SO-FB-P9 SO-FB-P9 SO-FB-P9 SO-FB-P10A SO-FB-P10A 1

13 O-Ring SO-FB-P9 SO-FB-P9 SO-FB-P9 SO-FB-P9 SO-FB-P9 SO-FB-P9 SO-FB-P9 3

14 O-Ring SO-FB-P7 SO-FB-P9 SO-FB-P9 SO-FB-P9 SO-FB-P9 SO-FB-P9 SO-FB-P9 SO-FB-P7:2 SO-FB-P9:1

15 O-Ring SO-FA-A018 SO-FA-A018 SO-FA-A018 SO-FA-A021 SO-FA-A021 SO-FA-A021 SO-FA-A021 1

16 O-Ring SO-FB-P26 SO-FB-P26 SO-FB-P26 SO-FB-P32 SO-FB-P32 SO-FB-P32 SO-FB-P32 1

★ Attached only to the port/flange U1 or J1.

Page 25: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

177

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Pilot Pressure Control Type Pressure Compensator

Graphic Symbol

■ Specifications

Model NumbersGeometric

Displacementcm3/rev

Minimum Adjustment

Flow cm3/rev

Operating PressureMPa

Minimum Adjustment

PressureMPa

Shaft Speed Ranger/min

Approx. Masskg

Rated★1 Intermittent Max.★2 Min. Flange Mtg. Foot Mtg.A3HG16-*R07*-*C-10 16.3 8

31.5 35

5

3600 600 18.9 22.9A3HG37-*R07*-*C-10

37.1 16 2700 600 28.537

A3HG37-*R07*-*D-10 36A3HG56-*R07*-*C-10

56.3 35 2500 60036.5 45

A3HG56-*R07*-*D-10 34.5 42A3HG71-*R07*-E1D-10

70.7 45

6

2300 60047 73

A3HG71-*R07*-U1D/U2D/J1D-10 43.5 51A3HG100-*R07K-E1D-10

100.5 63 2100 60058.5 83.5

A3HG100-*R07SP-E1D-10 58 83A3HG100-*R07*-U1D/U2D/J1D-10 58 85A3HG145-*R07K-E1D-10

145.2 95 1800 60070.5 96.5

A3HG145-*R07SP-E1D-10 70 96A3HG145-*R07*-U1D/U2D/J1D-10 70 97.5A3HG180-*R07K-E1D-10

180.7 125 1800 60090 116

A3HG180-*R07SP-E1D-10 89.5 115.5A3HG180-*R07*-U1D/U2D/J1D-10 89.5 117

★1. Consult Yuken when pump is used over rated pressure because there is a restriction on operating condition.★2. The maximum shaft speeds shown in the above table are at suction pressure 0 kPa.

A3HG Series high Pressure Variable Displacement Piston Pumps Pilot Pressure Control Type Pressure Compensator

MO

PPP

S DR

■ Model Number Designation

A3HG16 -F R 07 K -E1★ D -10

Series Number Mounting Direction of Rotation Control Type Shaft

Extension

Main Pump Mtg. FlangeConnecting Port / Pipe Flange Thread

Second Pump Mtg.

Number of Pump Mtg.

Bolts

Design Number

A3HG16(16.3 cm3/rev)

F: Flange Mtg.

L: Foot Mtg.

(Viewed from)Shaft End

R: Clockwise (Normal)

07: Pilot Pressure Control Type Pressure Compensator

K: Keyed Shaft

SP: Splined Shaft

CodeMain Pump Mtg.

Flange

Connecting Port

Pipe Flange Thread

Second Pump Mtg.

E1 ISO Metric Metric ISOU1 SAE Unified Unified SAEU2 SAE BSPP Metric SAEJ1 SAE Rc Metric SAE

C: 2 10

A3HG37(37.1 cm3/rev) C: 2

D: 4

10

A3HG56(56.3 cm3/rev) 10

A3HG71(70.7 cm3/rev)

D: 4

10

A3HG100(100.5 cm3/rev) 10

A3HG145(145.2 cm3/rev) 10

A3HG180(180.7 cm3/rev) 10

★ SAE type is also available for the second pump mounting when using ISO type for the main pump mounting flange. Consult Yuken for details.

Page 26: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

178 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Pilot Pressure Control Type Pressure Compensator

20

40

60

80

100

120

140

0

Out

put F

low 

L/m

in

Pressure MPa50 10 15 20 25 30 35

1800 r/min

1500 r/min

Full

Cut

-off

Dra

in 

L/m

in

5

10

15

20

0

2300 r/min1800 r/min1500 r/min

Full Cut-off Pressure MPa

50 10 15 20 25 30 35

2

4

6

8

10

12

14

16

0

Full

Cut

-off

Pow

er 

kW

2300 r/min

1800 r/min1500 r/min

Full Cut-off Pressure MPa

50 10 15 20 25 30 35

■ Pipe Flange KitsPipe flange mouting surface conforms to SAE J 518, 4 bolt split flange.Pipe flange kits are not available.Contact us for the details.

■ Pressure vs. Output Flow

■ Full Cut-off Power ■ Full Cut-off Drain

Typical Performance Characteristics of Type “A3HG71” at Viscosity 32 mm2/s[ISO VG32 oils,40°C]

Page 27: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

179

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Pilot Pressure Control Type Pressure Compensator

DEC.

INC.

★4

12°

O-Ring

1/2-20 UNF Thd.

M14×1.5 Thd.

SAE #5

Adapter

Tightening torque : 26 - 29 Nm

24 Hex

24

Detail of Adapter Port

45°

11.5

★4. Adapter port conforms to SAE J 514, O-Ring seals

+0.1 0 Dia.14+

0.4

02.

4

For Port/Flange Code”U1/U2/J1”,Adapter and O-Ring are attached.After installing the O-Ring at the drain port tighten the adapter■ Pilot Port

● Detail:A3HG16-FR07K-E1C ● Accessories:A3HG16-FR07K-U1C

★3

★3. Pilot port conforms to ISO 9974-1, metric threads.

(125

) 130.

5

26 Dia.90°

Detail of Pilot Port

Max.14.2 Dia.

★5

Tightening torque : 26 - 29 Nm

G 1/4 Thd.

90°

M14×1.5 Thd.O-Ring

24 Hex

24

Adapter Detail of Adapter Port

★5. Adapter port conforms to ISO 1179-1, BSPP threads.

120.

5

Max.13.2 Dia.

+0.2 0 Dia.21

Drain Port is common to that of pressure compensator model. Refer to page 167 for the dimensions of Drain Port.

■ Drain Port

● Accessories:A3HG16-FR07K-U2C ● Accessories:A3HG16-FR07K-J1C

Adapter

O-Ring

Rc 1/4 Thd.

M14×1.5 Thd.Tightening torque : 26 - 29 Nm

24 Hex

24

Mounting bracket is common to that of pressure compensator model (except max height dimension). Refer to page 167 for the dimensions of mounting bracket.

■ Foot Mtg.:A3HG16-LR07K-E1C/U1C/U2C/J1C

0-0.036

+0.03 0 +0.03 0

4.76

+0.03 04.76

4.76

L NK

28 109

106

106

106

33

33

33

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

20.5 +0.008-0.133 80 0

-0.046 0-0.1621.24 0-0.1621.24 0-0.1621.24

0-0.0582.55 0-0.0582.55 0-0.0582.55

H J

18 +0.008-0.003

Model Numbers A B C

A3HG16-FR07K-U1C

A3HG16-FR07K-E1C

A3HG16-FR07K-J1C

A3HG16-FR07K-U2C M10

M10

M10

19

19 36

G 1/2

G 1/2

G 1/2

M22×1.5

41

41

4119

173/8-16 UNC

D E F

22

28

28

28

0-0.0319.05 0-0.0319.05 0-0.0319.05

★2.Remove the plug (6 Hex. Soc.), install piping with refering to the instructions “Pilot Piping” on page 154.★1.Install the pump so that the "Filling Port" is at the top.

221

212.5

129.5Fully Extended Drain Port

“C” Thd.

46

6.4

D

E

F D

ia.

H

J D

ia.

DIN332-R3.15×6.7Center HoleK

1023.8

166.5203

Attachment SideDischarge Port19 Dia.

Plain Washer

Soc. Hd. Cap Screw

Gasket

(With a plug)

End Cover

8112

5

50.8

Pilot Port M14×1.54 Places

“A” Thd. “B” Deep Filling Port★2★1

22 Hex. Head Plug Furnished

Surface ofDischarge Port

76.5 61.578.5

■ Flange Mtg.:A3HG16-FR07K-E1C/U1C/U2C/J1C

31.5

Pressure Adj. ScrewSafety Valve

14 Hex.

45°79

28

Suction PortSurface of Flow Adj. Screw

13 Hex.

4 Places“A” Thd. “B” Deep

52.4

129

L

45°

N

130

11

7179.5

81

95 Dia.

Suction Port26 Dia.

26.2

166.5

Page 28: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

180 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Pilot Pressure Control Type Pressure Compensator

DEC.

DEC.

INC.

INC.

View Arrow X

4 Places

“A2” Thd. “B2” Deep

198

30.2

58.7

Suction Port32 Dia.

X

85 85

33

Suction PortSurface of

Flow Adj. Screw

Pilot Port

(With a plug)

(With a plug)

M14×1.5 Thd.

17 Hex.

Surface ofDischarge Port

22 Hex. Head Plug FurnishedFilling Port★2

★1

129.

591

71.5

247.5273

1327.8198

“C” Thd.

“N” Thd.“P” Deep

E

L

F

DFully Extended

Pilot Port

Pilot Port

Drain Port

H D

ia.

93.5

K D

ia.J

251Attachment Side

Seal CoverEnd Cover

57.2

133.

5

Plain WasherHex. Hd. Screw

Discharge Port24 Dia.

4 Places“A1” Thd. “B1” Deep

★1.

★2.

Remove the plug (6 Hex. Soc.), install piping with refering to the instructions “Pilot Piping” on page 154.Install the pump so that the "Filling Port" is at the top.

162

16.5

174

R

Q

122

13.5

28

Safety ValvePressure Adj. Screw14 Hex.

120 Dia.

25 +0.009-0.004 28 +0.009

- 0.294 100 0-0.054

0-0.0368

0-0.1828.18

28.18

28.18

0-0.18 0-0.18

0-0.05101.6

101.6

101.6

0-0.05 0-0.05

+0.03 0

+0.03 0+0.03 0

6.35

6.35

6.35

Model Numbers A1 A2 B1 B2 C

A3HG37-FR07K-U1C

A3HG37-FR07K-E1C

A3HG37-FR07K-J1C

A3HG37-FR07K-U2C M10

M10

M12

M12

M12

M10 M8 19

16

16

16

1822

1822

1822

52

G 1/2

G 1/2

G 1/2

M22×1.5

46

46

46

207/16-14 UNC

D E F H P Q RJ K L N

9 36

32

32

32

42 140

146

146

146

9.7

9.7

9.7

38

38

38

0-0.0525.4

25.4

25.4

0-0.05 0-0.05

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

1/4-20 UNC

■ Flange Mtg. Four Bolts:A3HG37-FR07K-E1D/U1D/U2D/J1D

85

33

85

Suction PortSurface of Surface of

Discharge Port

Pilot PortM14×1.5 Thd.

★1

129.

5

133.

5

57.2

57

147.5

233258.5

1327.8

183.5

“L” Thd.“N” Deep

E

K

DFully Extended “C” Thd.

Drain Port

F D

ia.

93.5

146

J D

ia.

Q

H

H J

Flow Adj. Screw17 Hex.

22 Hex. Head Plug FurnishedFilling Port★2

236.5Attachment Side

Seal CoverEnd Cover

Plain WasherHex. Hd. Screw

Discharge Port24 Dia.

4 Places“A1” Thd. “B1” Deep

★1.

★2.

Remove the plug (6 Hex. Soc.), install piping with refering to the instructions “Pilot Piping” on page 154.Install the pump so that the "Filling Port" is at the top.

X

13.5 28

154

16.5

P

Q

40

View Arrow X183.5

4 Places

58.7

“A2” Thd. “B2” Deep

30.2

Suction Port32 Dia.

Safety ValvePressure Adj. Screw14 Hex.

32 +0.018+0.002 35 +0.018

- 0.288 125 0-0.063

0-0.03610

0-0.1835.32 0-0.1835.32 0-0.1835.32

0-0.05127

127

127

0-0.05 0-0.05

+0.03 0

+0.03 0

7.94

7.94

7.94 +0.03 0

Model Numbers A1 A2 B1 B2 C

A3HG37-FR07K-U1D

A3HG37-FR07K-E1D

A3HG37-FR07K-J1D

A3HG37-FR07K-U2D M10

M10

M12

M12

M12

M10 M10 22

19

19

19

1822

1822

1822

60

G 1/2

G 1/2

G 1/2

M22×1.5

56

56

56

207/16-14 UNC

D E F P QK L N

9 50 113.2

114.5

114.5

114.5

12.7

12.7

12.7

48

48

48

31.75 0-0.05

31.75 0-0.05

31.75 0-0.05

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

5/16-18 UNC

90

Mounting bracket is common to that of pressure compensator model (except max height dimension). Refer to page 168 and 169 for the dimensions of mounting bracket.

■ Foot Mtg.:A3HG37-LR07K-E1C/U1C/U2C/J1C, A3HG37-LR07K-E1D/U1D/U2D/J1D

■ Pilot Port

■ Drain PortDrain Port is common to that of pressure compensator model.Refer to page 168 or 169 for the dimensions of Drain Port.

Pilot Port is common to that of “A3HG16-FR07K-E1C/U1C/U2C/J1C” (except the height dimension from the center of the pump).Refer to page 179 for the dimensions of Pilot Port.

■ Flange Mtg. Two Bolts:A3HG37-FR07K-E1C/U1C/U2C/J1C

Page 29: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

181

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Pilot Pressure Control Type Pressure Compensator

■ Flange Mtg. Two Bolts:A3HG56-FR07K-E1C/U1C/U2C/J1C

36

8591

85

Flow Adj. Screw17 Hex.

Suction Port

(With a plug)

Surface of Surface ofDischarge Port

Pilot PortM14×1.5 Thd.

★1

78.5

184.5

271

300

D

E

F

Fully Extended

Pilot Port

Pilot Port

22 Hex. Head Plug FurnishedFilling Port★2

“C” Thd.Drain Port

Seal CoverEnd Cover

L

1327.8223

H D

ia.

106.

5

J

K D

ia.

“N” Thd.“P” Deep

120 Dia.R

174

19

Q

122

13.5

28

Safety ValvePressure Adj. Screw14 Hex.

144.

5

57.2

278Attachment Side

Plain WasherHex. Hd. Screw

Discharge Port26 Dia.

4 Places“A1” Thd. “B1” Deep

★2. Install the pump so that the "Filling Port" is at the top.

★1. Remove the plug (6 Hex. Soc.), install piping with refering to the instructions “Pilot Piping” on page 154.

223

69.9

35.7

X

140.

510

2

Suction Port38 Dia.4 Places

“A2” Thd. “B2” Deep

View Arrow X

Model Numbers

A3HG56-FR07K-U1C

A3HG56-FR07K-E1C

A3HG56-FR07K-J1C

A3HG56-FR07K-U2C M12

M12

M12

M12

M12

M12 2222

2222

2222

G 3/4

G 3/4

G 3/4

M27×2

20 217/16-14 UNC

1/2-13UNC

A1 A2 B1 B2 C D E F H P Q RJ K L N Mounting Flange Pipe Flange Threads

Connecting Port

25 +0.009- 0.004 28 +0.009

- 0.294 100 0-0.054

0-0.0368

0-0.1828.18

28.18

28.18

0-0.18 0-0.18

0-0.05101.6

101.6

101.6

0-0.05 0-0.05

+0.03 0 +0.03 0

6.35

6.35

6.35 +0.03 0

M8 19

16

16

16

52

46

46

46

9 36

32

32

32

42 140

146

146

146

9.7

9.7

9.7

38

38

38

0-0.0525.4

25.4

25.4

0-0.05 0-0.05

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

1/4-20 UNC

■ Flange Mtg. Four Bolts:A3HG56-FR07K-E1D/U1D/U2D/J1D

85

91

8536

Surface ofDischarge Port

Pilot PortM14×1.5 Thd.

★1

Flow Adj. Screw17 Hex.

Suction PortSurface of

140.

5

144.

5

57.2

102

198

69.9

35.7Suction Port38 Dia.4 Places

“A2” Thd. “B2” Deep

View Arrow X

Seal CoverEnd Cover

Plain WasherHex. Hd. Screw

Discharge Port26 Dia.

4 Places“A1” Thd. “B1” Deep

X

53.5 40

159.5

246

275

E

DFully Extended

22 Hex. Head Plug FurnishedFilling Port★2

“C” Thd.Drain Port

F D

ia.

106.

5

146

J D

ia.H

Q

19

“L” Thd.“N” Deep

Safety ValvePressure Adj. Screw14 Hex.

13.5 2827.8

198154

P

K

Q

253Attachment Side

★2. Install the pump so that the "Filling Port" is at the top.

★1. Remove the plug (6 Hex. Soc.), install piping with refering to the instructions “Pilot Piping” on page 154.

Model Numbers A1 A2 B1 B2 C

A3HG56-FR07K-U1D

A3HG56-FR07K-E1D

A3HG56-FR07K-J1D

A3HG56-FR07K-U2D M12

M12

M12

M12

M12

M12 2222

2222

2222

60

G 3/4

G 3/4

G 3/4

M27×2

56

56

56

20 217/16-14 UNC

1/2-13UNC

D E F H P QJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange ThreadsMetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

32+0.018+0.002 35 +0.018

- 0.288 125 0-0.063

0-0.18

0-0.1835.32

35.32

0-0.1835.32

0-0.05127

127

127

0-0.05 0-0.05

50

48

48

48

31.75 0-0.05

31.75 0-0.05

31.75 0-0.05

0-0.03610

+0.03 0

+0.03 0 +0.03 0

7.94

7.94

7.94

M10 22

19

19

19

113.2

114.5

114.5

114.5

5/16-18 UNC

■ Pilot PortPilot Port is common to that of “A3HG16-FR07K-E1C/U1C/U2C/J1C” (except the height dimension from the center of the pump).Refer to page 179 for the dimensions of Pilot Port.

■ Drain PortDrain Port is common to that of pressure compensator model.Refer to page 170 or 171 for the dimensions of Drain Port.

Mounting bracket is common to that of pressure compensator model (except max height dimension). Refer to page 170 and 171 for the dimensions of mounting bracket.

■ Foot Mtg.:A3HG56-LR07K-E1C/U1C/U2C/J1C, A3HG56-LR07K-E1D/U1D/U2D/J1D

13

DEC.

DEC.

INC.

INC.(With a plug)

Page 30: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

182 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Pilot Pressure Control Type Pressure Compensator

DEC.

DEC.

INC.

INC.

■ Pilot PortPilot Port is common to that of “A3HG16-FR07K-E1C/U1C/U2C/J1C” (except the height dimension from the center of the pump).Refer to page 179 for the dimensions of Pilot Port.

■ Drain PortDrain Port is common to that of pressure compensator model.Refer to page 172 or 173 for the dimensions of Drain Port.

Mounting bracket is common to that of pressure compensator model. Refer to page 172 and 173 for the dimensions of mounting bracket.

■ Foot Mtg.:A3HG71-LR07K-E1D/U1D/U2D/J1D, A3HG100-LR07K-E1D/U1D/U2D/J1D

★1. Remove the plug (6 Hex. Soc.), install piping with refering to the instructions “Pilot Piping” on page 154.★2. Install the pump so that the "Filling Port" is at the top.

■ Flange Mtg.:A3HG100-FR07K-E1D/U1D/U2D/J1D

Model Numbers

A3HG100-FR07K-U1D

A3HG100-FR07K-E1D

A3HG100-FR07K-J1D

A3HG100-FR07K-U2D

M12

M12

M12

22

22

22

80

G 3/4

G 3/4

G 3/4

M27×2

62

62

62

211/2-13 UNC

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

+0.018+0.002

+0.018-0.288 180 0

-0.063 0-0.18

0-0.18 0-0.18

0-0.05152.4

152.4

152.4

0-0.05 0-0.05

70

54

54

54

0-0.05

0-0.05 0-0.05

0-0.04312

+0.03 0 +0.03 0

9.53

9.53

9.53 +0.03 0

M12 28

28

28

28

158.4

161.6

161.6

161.6

18

21.5

21.5

21.5

35

39

39

39

7/16-14 UNC

56

45

45

45

40

38.1

38.1

38.1

43

42.36

42.36

42.36

View Arrow X★1. Remove the plug(6 Hex. Soc.), install piping with refering to the instructions “Pilot Piping” on page 154.★2. Install the pump so that the "Filling Port" is at the top.

A B C D E F H P Q R SJ K L N T

X

50.8Suction Port63 Dia.

4 Places

“A” Thd. “B” Deep

243

42.5112.5

322

287

188112.5

(With a plug)

Pilot PortM14×1.5 Thd.

★1

Suction PortSurface of

Flow Adj. Screw17 Hex.

Surface ofDischarge Port

154

163

66.7

118.

5

Fully ExtendedSeal CoverEnd Cover

Plain WasherHex. Hd. Screw

Discharge Port34 Dia.

4 Places“A” Thd. “B” Deep

88.9

62.5

17.531.8

243

E

F

D

27 Hex. Head Plug FurnishedFilling Port★2

Drain Port “C” Thd.

L

H D

ia.

129

K D

ia.J

“N” Thd.“P” Deep

300Attachment Side

Case Drain Port5 Hex. Soc. 210

R

S T

Q

23

210

R

Safety ValvePressure Adj. Screw14 Hex.

Model Numbers A B C

A3HG71-FR07K-U1D

A3HG71-FR07K-E1D

A3HG71-FR07K-J1D

A3HG71-FR07K-U2D

M12

M12

M12

22

22

22

60

G 3/4

G 3/4

G 3/4

M27×2

56

56

56

211/2-13 UNC

D E F H P Q R SJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange ThreadsMetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

32 +0.018+0.002 35 +0.018

- 0.288 160 0-0.063

0-0.18 0-0.1835.32

35.32

0-0.1835.32

0-0.05127

127

127

0-0.05

0-0.05

50

48

48

48

31.75 0-0.05

31.75 0-0.05

31.75 0-0.05

0-0.03610

+0.03 0

+0.03 0

7.94

7.94

7.94 +0.03 0

M10 22

19

19

19

190

143

143

143

141.4

114.5

114.5

114.5

18

13.5

13.5

13.5

T U

35

28

28

28

192

155

155

155

5/16-18 UNC

■ Flange Mtg.:A3HG71-FR07K-E1D/U1D/U2D/J1D

43.561

176

270296.5

40

D

E102 102Pilot Port

M14×1.5 Thd.(With a plug)

★1

Suction PortSurface of Surface of

Discharge PortFlow Adj. Screw17 Hex.

Fully Extended

Pilot Port

Pilot Port

22 Hex. Head Plug FurnishedFilling Port★2

“C” Thd.Drain Port Seal Cover

End Cover

K

SRU

T

19

PF D

ia.

J D

ia. 11

6.5

H

Q R

“L” Thd.“N” Deep

Case Drain Port5 Hex. Soc.

Safety ValvePressure Adj. Screw14 Hex.

42.9

223.5

77.8

Suction Port51 Dia.4 Places

“A” Thd. “B” Deep

View Arrow X

18

223.5

31.8

X

148.

5

114

152.

5

66.7

274.5Attachment Side

Plain WasherHex. Hd. Screw

Discharge Port34 Dia.

4 Places“A” Thd. “B” Deep

Page 31: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

183

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Pilot Pressure Control Type Pressure Compensator

DEC.

DEC.

INC.

INC.

■ Flange Mtg.:A3HG145-FR07K-E1D/U1D/U2D/J1D

■ Flange Mtg.:A3HG180-FR07K-E1D/U1D/U2D/J1D

■ Pilot Port

■ Drain Port

■ Foot Mtg.:A3HG145-LR07K-E1D/U1D/U2D/J1D, A3HG180-LR07K-E1D/U1D/U2D/J1D

Pilot Port is common to that of “A3HG16-FR07K-E1C/U1C/U2C/J1C” (except the height dimension from the center of the pump).Refer to page 179 for the dimensions of Pilot Port.

Drain Port is common to that of pressure compensator model.Refer to page 174 or 175 for the dimensions of Drain Port.

Mounting bracket is common to that of pressure compensator model. Refer to page 174 and 175 for the dimensions of mounting bracket.

Model Numbers A B C

A3HG180-FR07K-U1D

A3HG180-FR07K-E1D

A3HG180-FR07K-J1D

A3HG180-FR07K-U2D

M16

M16

M16

29

29

29

92

G 3/4

G 3/4

G 3/4

M27×2

75

75

75

295/8-11 UNC

D E F H P Q R SJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

+0.018+0.002

+0.018 -0.288 180 0

-0.063

0-0.18 0-0.18 0-0.18

0-0.05152.4

152.4

152.4

0-0.05 0-0.05

82

67

67

67

0-0.05 0-0.05 0-0.05

0-0.04314

+0.03 0 +0.03 0

11.11

11.11

11.11 +0.03 0

M16 36

32

32

32

158.4

161.6

161.6

161.6

18

21.5

21.5

21.5

T

35

39

39

39

1/2-13 UNC

70

56

56

56

45

44.45

44.45

44.45

48.5

49.39

49.39

49.39

★1. Remove the plug (6 Hex. Soc.), install piping with refering to the instructions “Pilot Piping” on page 154.★2. Install the pump so that the "Filling Port" is at the top.

2436.5297.5

TSR

220

“N” Thd.“P” Deep

362.5Attachment Side

Plain WasherHex. Hd. Screw

Discharge Port44 Dia.

4 Places“A” Thd. “B” Deep

5 Hex. Soc.Case Drain Port

27 Hex. Head Plug FurnishedFilling Port★2

384.5352.5

238.5

86 E

F

D27.5

L

“C” Thd.Drain Port

Fully Extended

H D

ia.

148

K D

ia.

J

R210

Safety ValvePressure Adj. Screw14 Hex.

129 12940

Suction PortSurface of

297.5

61.9

106.

4

View Arrow X

Suction Port76 Dia.4 Places

“A” Thd. “B” Deep

Flow Adj. Screw19 Hex.

Surface ofDischarge Port

168.

519

0

79.4

138

Seal CoverEnd CoverPilot Port

M14×1.5 Thd.(With a plug)

★1

X

Model Numbers A B C

A3HG145-FR07K-U1D

A3HG145-FR07K-E1D

A3HG145-FR07K-J1D

A3HG145-FR07K-U2D

M12

M12

M12

22

22

22

92

G 3/4

G 3/4

G 3/4

M27×2

75

75

75

211/2-13 UNC

D E F H P Q R SJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

+0.018+0.002

+0.018 -0.288 180 0

-0.063

0-0.18 0-0.18

0-0.05152.4

152.4

152.4

0-0.05

82

67

67

0-0.05 0-0.05

0-0.04314

+0.03 0 +0.03 0

11.11

11.11

11.11

M16 36

32

32

158.4

161.6

161.6

18

21.5

21.5

T

35

39

391/2-13 UNC

70

56

56

56

45

44.45

44.45

44.45

48.5

49.39

49.39

49.39 0-0.18

0-0.05 67 0

-0.05 +0.03 032 161.6 21.5 39

★1. Remove the plug (6 Hex. Soc.), install piping with refering to the instructions “Pilot Piping” on page 154.★2. Install the pump so that the "Filling Port" is at the top.

31.8

266.5

323.5Attachment Side

Plain WasherHex. Hd. Screw

Discharge Port34 Dia.

4 Places“A” Thd. “B” Deep

5 Hex. Soc.Case Drain Port 220

F

22

L

H D

ia.

138.

5

K D

ia.

210

R

J

“N” Thd.“P” Deep TS

R

26

Safety ValvePressure Adj. Screw14 Hex.

Q

345.5321.5

211.5

74 E

D

27 Hex. Head Plug FurnishedFilling Port★2

“C” Thd.Drain Port

Fully Extended

Pilot Port

Pilot Port

88.9

50.8 Suction Port63 Dia.

4 Places

“A” Thd. “B” Deep

266.5

View Arrow X

66.7

Seal CoverEnd Cover123

46

123

Suction PortSurface of

19 Hex.Flow Adj. Screw Surface of

Discharge Port

172.

5

160.

5

129

X

Pilot PortM14×1.5 Thd.

★1

(With a plug)

Q

Page 32: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

184 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Constant Power Control Type With External Pilot

Graphic Symbol

■ Specifications

Model NumbersGeometric

Displacementcm3/rev

Minimum Adjustment

Flow cm3/rev

Operating PressureMPa

Minimum Adjustment

PressureMPa

Shaft Speed Ranger/min

Approx. Masskg

Rated★1 Intermittent Max.★2 Min. FlangeMtg.

FootMtg.

A3HG37-*R09V*-*-*C-1037.1 16

31.5 35 5

2700 600 3745.5

A3HG37-*R09V*-*-*D-10 44.5A3HG56-*R09V*-*-*C-10

56.3 35 2500 60045 53.5

A3HG56-*R09V*-*-*D-10 43 50.5A3HG71-*R09V*-*-E1D-10

70.7 45 2300 60056 82

A3HG71-*R09V*-*-U1D/U2D/J1D-10 52.5 60A3HG100-*R09V*-K-E1D-10

100.5 63 2100 60067.5 92.5

A3HG100-*R09V*-SP-E1D-10 67 92A3HG100-*R09V*-*-U1D/U2D/J1D-10 67 94A3HG145-*R09V*-K-E1D-10

145.2 95 1800 60083.5 109.5

A3HG145-*R09V*-SP-E1D-10 83 109A3HG145-*R09V*-*-U1D/U2D/J1D-10 83 110.5A3HG180-*R09V*-K-E1D-10

180.7 125 1800 600101 127

A3HG180-*R09V*-SP-E1D-10 100.5 126.5A3HG180-*R09V*-*-U1D/U2D/J1D-10 100.5 128

★1. Consult Yuken when pump is used over rated pressure because there is a restriction on operating condition.★2. The maximum shaft speeds shown in the above table are at suction pressure 0 kPa.

A3HG Series high Pressure Variable Displacement Piston Pumps Constant Power Control Type With External Pilot

M

S

P

PP

DR0

A3HG37/A3HG56

M

S

P

PP

DR0

A3HG71/A3HG100A3HG145/A3HG180

■ Model Number Designation

A3HG37 -F R 09V B -K -E1★ D -10

Series Number Mounting Direction of Rotation

ControlType

Input PowerSetting

Shaft Extension

Main Pump Mtg. FlangeConnecting Port / Pipe Flange Thread

Second Pump Mtg.

Number of Pump Mtg.

Bolts

Design Number

A3HG37(37.1 cm3/rev)

F: Flange Mtg.

L: Foot Mtg.

(Viewed from)Shaft End

R: Clockwise (Normal)

09V: Constant PowerControl Type With External Pilot

B:7.5 kW  |N:110 kW

Refer to thetable on following page for combination.

K: Keyed Shaft

SP: Splined Shaft

CodeMain Pump Mtg.

Flange

Connecting Port

Pipe Flange Thread

Second Pump Mtg.

E1 ISO Metric Metric ISOU1 SAE Unified Unified SAEU2 SAE BSPP Metric SAEJ1 SAE Rc Metric SAE

C: 2D: 4

10

A3HG56(56.3 cm3/rev) 10

A3HG71(70.7 cm3/rev)

D: 4

10

A3HG100(100.5 cm3/rev) 10

A3HG145(145.2 cm3/rev) 10

A3HG180(180.7 cm3/rev) 10

★ SAE type is also available for the second pump mounting when using ISO type for the main pump mounting flange. Consult Yuken for details.

Page 33: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

185

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Constant Power Control Type With External Pilot

50 10 15 20 25 30 35Pressure MPa

5 10 15 20 25 30 35Pressure MPa

0 5 10 15 20 25 30 35Pressure MPa

050 10 15 20 25 30 35Pressure MPa

10

20

30

40

50

60

70

80

Out

put F

low

L/m

in

● A3HG37

● A3HG56

N=1200 r/min N=1500 r/min N=1800 r/minN=1000 r/min

N=1000 r/min N=1200 r/min N=1500 r/min N=1800 r/min

● A3HG71

5 10 15 20 25 30 35Pressure MPa

5 10 15 20 25 30 35Pressure MPa

5 10 15 20 25 30 35Pressure MPa

5 10 15 20 25 30 35Pressure MPa

0

20

40

60

80

100

120

Out

put F

low

L/m

in

0

20

40

60

80

100

120

140

Out

put F

low

L/m

in

0 0 0

5 10 15 20 25 30 35Pressure MPa

5 10 15 20 25 30 35Pressure MPa

5 10 15 20 25 30 35Pressure MPa

5 10 15 20 25 30 35Pressure MPa

N=1000 r/min N=1200 r/min N=1500 r/min N=1800 r/min140 140 140

0 0 0

10

20

30

40

50

60

70

80

Out

put F

low

L/m

in

20

40

60

80

100

120

Out

put F

low

L/m

in

20

40

60

80

100

120

Out

put F

low

L/m

in

37 kW

45 kW

18.5 kW22 kW

10

20

30

40

50

60

70

80

Out

put F

low

L/m

in

20

40

60

80

100

120

Out

put F

low

L/m

in

20

40

60

80

100

120

Out

put F

low

L/m

in

30 kW

37 kW

37 kW45 kW

10

20

30

40

50

60

70

80

Out

put F

low

L/m

in

18.5 kW22 kW

20

40

60

80

100

120

Out

put F

low

L/m

in

20

40

60

80

100

120

Out

put F

low

L/m

in

30 kW37 kW

37 kW45 kW

11 kW

7.5 kW

15 kW

7.5 kW11 kW

15 kW

22 kW

15 kW

18.5 kW

7.5 kW

11 kW

15 kW

18.5 kW22 kW

11 kW7.5 kW

22 kW

30 kW

37 kW

15 kW18.5 kW

11 kW

18.5 kW

22 kW

30 kW

15 kW11 kW

22 kW

11 kW15 kW

18.5 kW

15 kW

22 kW18.5 kW

30 kW

15 kW

22 kW18.5 kW

30 kW37 kW

15 kW

22 kW18.5 kW

30 kW37 kW

45 kW

11 kW15 kW

18.5 kW

22 kW

30 kW

15 kW

22 kW18.5 kW

■ Pipe Flange KitsPipe flange mouting surface conforms to SAE J 518, 4 bolt split flange.Pipe flange kits are not available.Contact us for the details.

■ Combination of pump series and input power settingMark "○" in the table below refers to available combinations.

Model NumbersInput Power Setting kW

B:7.5

C:11

D:15

E:18.5

F:22

G:30

H:37

J:45

K:55

L:75

M:90

N:110

A3HG37 ○ ○ ○ ○ ○

A3HG56 ○ ○ ○ ○ ○ ○

A3HG71 ○ ○ ○ ○ ○ ○

A3HG100 ○ ○ ○ ○ ○ ○

A3HG145 ○ ○ ○ ○ ○ ○ ○

A3HG180 ○ ○ ○ ○ ○ ○ ○

Typical Performance Characteristics of Type “A3HG37/56/71” at Viscosity 32 mm2/s [ISO VG32 oils,40°C]

★1. Pumps are adjusted to the required power before shipment, but in case of oil temperature raise(increase of drain) the input power may exceed the adjusted power. In that case phase re-adjust screw refering to instruction manual.

★2. In case of over 1800 r/min of shaft speed, the input power may exceed the adjusted power.In that case phase re-adjust screw refering to instruction manual.

Page 34: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

186 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Constant Power Control Type With External Pilot

● A3HG100

● A3HG145

● A3HG180

5 10 15 20 25 30 35Pressure MPa

5 10 15 20 25 30 35

Pressure MPa5 10 15 20 25 30 35

Pressure MPa5 10 15 20 25 30 35

Pressure MPa5 10 15 20 25 30 35

Pressure MPa

5 10 15 20 25 30 35Pressure MPa

N=1000 r/min

N=1000 r/min N=1200 r/min N=1500 r/min N=1800 r/min

N=1200 r/min N=1500 r/min N=1800 r/min

0

0

280

0

280

0

280

0

280

0 5 10 15 20 25 30 35Pressure MPa

5 10 15 20 25 30 35Pressure MPa

0 0

200

5 10 15 20 25 30 35

Pressure MPa5 10 15 20 25 30 35

Pressure MPa5 10 15 20 25 30 35

Pressure MPa5 10 15 20 25 30 35

Pressure MPa

40

80

120

160

200

Out

put F

low

L/m

in

40

80

120

160

200

240

Out

put F

low

L/m

in

0

50

150

100

200

250

300

350

Out

put F

low

L/m

in

0 0 0

50

150

100

200

250

300

350

Out

put F

low

L/m

in

40

80

120

160

200

240

Out

put F

low

L/m

in

40

80

120

160

200

Out

put F

low

L/m

in

45 kW55 kW

75 kW90 kW

90 kW110 kW

50

150

100

200

250

300

350

Out

put F

low

L/m

in

40

80

120

160

200

240

Out

put F

low

L/m

in

40

80

120

160

200

Out

put F

low

L/m

in

90 kW110 kW

75 kW90 kW

45 kW55 kW

50

150

100

200

250

300

350

Out

put F

low

L/m

in

40

80

120

160

200

240

Out

put F

low

L/m

in

40

80

120

160

Out

put F

low

L/m

in

110 kW

90 kW

45 kW

55 kW

37 kW

18.5 kW22 kW

30 kW

18.5 kW22 kW

30 kW

37 kW

18.5 kW22 kW

30 kW

37 kW

18.5 kW22 kW

30 kW

37 kW45 kW

55 kW

22 kW30 kW

37 kW45 kW

55 kW75 kW

90 kW

22 kW30 kW

37 kW45 kW

55 kW75 kW

22 kW30 kW

37 kW45 kW

55 kW55 kW

22 kW30 kW

37 kW45 kW

30 kW37 kW

45 kW55 kW

75 kW

30 kW37 kW

45 kW55 kW

75 kW

N=1200 r/min N=1500 r/min

30 kW37 kW

45 kW55 kW

75 kW90 kW

N=1800 r/min

30 kW37 kW

45 kW55 kW

75 kW90 kW

110 kW

N=1000 r/min

Typical Performance Characteristics of Type “A3HG100/145/180” at Viscosity 32 mm2/s [ISO VG32 oils,40°C]

★1. Pumps are adjusted to the required power before shipment, but in case of oil temperature raise(increase of drain) the input power may exceed the adjusted power. In that case phase re-adjust screw refering to instruction manual.

★2. In case of over 1800 r/min of shaft speed, the input power may exceed the adjusted power.In that case phase re-adjust screw refering to instruction manual(except the model of “A3HG145/A3HG180”).

Page 35: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

187

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Constant Power Control Type With External Pilot

■ Pilot PortPilot Port is common to that of “A3HG16-FR07K-E1C/U1C/U2C/J1C”(except the height dimension from the center of the pump).Refer to page 179 for the dimensions of Pilot Port.

■ Drain PortDrain Port is common to that of pressure compensator model.Refer to page 168 or 169 for the dimensions of Drain Port.

Mounting bracket is common to that of pressure compensator model (except max height dimension). Refer to page 168 and 169 for the dimensions of mounting bracket.

■ Foot Mtg.:A3HG37-LR09V*-K-E1C/U1C/U2C/J1C, A3HG37-LR09V*-K-E1D/U1D/U2D/J1D

Install the pump so that the "Filling Port" is at the top.★2.Do not touch the screw because it is adjusted at the time of shipment.★3.

★1. Remove the plug when using the port (6 Hex. Soc.).Also the pilot port adapter is not standardaccessory, so it must be ordered separately refering to the “Pilot Port” on page 179.

Install the pump so that the "Filling Port" is at the top.★2.Do not touch the screw because it is adjusted at the time of shipment.★3.

★1. Remove the plug when using the port (6 Hex. Soc.).Also the pilot port adapter is not standardaccessory, so it must be ordered separately refering to the “Pilot Port” on page 179.

■ Flange Mtg. Four Bolts:A3HG37-FR09V*-K-E1D/U1D/U2D/J1D

■ Flange Mtg. Two Bolts:A3HG37-FR09V*-K-E1C/U1C/U2C/J1C

25 +0.009 -0.004 28+0.009

-0.294 100 0-0.054

0-0.0368

0-0.1828.18

28.18

28.18

0-0.18

0-0.18

0-0.05101.6

101.6

101.6

0-0.05

0-0.05

+0.03 0

+0.03 0+0.03 0

6.35

6.35

6.35

Model Numbers A1 A2 B1 B2 C

A3HG37-FR09V*-K-U1C

A3HG37-FR09V*-K-E1C

A3HG37-FR09V*-K-J1C

A3HG37-FR09V*-K-U2C M10

M10

M12

M12

M12

M10 M8 19

16

16

16

1822

1822

1822

52

G 1/2

G 1/2

G 1/2

M22×1.5

46

46

46

207/16-14 UNC

D E F H P Q RJ K L N

9 36

32

32

32

42 140

146

146

146

9.7

9.7

9.7

38

38

38

0-0.0525.4

25.4

25.4

0-0.05

0-0.05

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

1/4-20 UNC

A3HG37-FR09V*-K-U1D

A3HG37-FR09V*-K-E1D

A3HG37-FR09V*-K-J1D

A3HG37-FR09V*-K-U2D

32 +0.018+0.002 35+0.018

-0.288 125 0-0.063

0-0.03610

0-0.1835.32 0-0.1835.32 0-0.1835.32

0-0.05127

127

127

0-0.05 0-0.05

+0.03 0

+0.03 0

7.94

7.94

7.94 +0.03 0

Model Numbers A1 A2 B1 B2 C

M10

M10

M12

M12

M12

M10 M10 22

19

19

19

1822

1822

1822

60

G 1/2

G 1/2

G 1/2

M22×1.5

56

56

56

207/16-14 UNC

D E F H P QJ K L N

9 50 113.2

114.5

114.5

114.5

12.7

12.7

12.7

48

48

48

31.75 0-0.05

31.75 0-0.05

31.75 0-0.05

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

5/16-18 UNC

16.5 Safety ValvePressure Adj.Screw14 Hex.

122

13.5

28

174R

120 Dia.

Q

“C” Thd.Drain Port

71.5

D

F

143.5

247.5273

EPilot Port

Fully Extended

F

H D

ia.

93.5

K D

ia.J

“N” Thd.“P” Deep

22 Hex. Head Plug FurnishedFilling Port★2

View Arrow X

4 Places

“A2” Thd. “B2” Deep

198

30.2

58.7

Suction Port32 Dia.

X

85 158

Suction PortSurface of Surface of

Discharge Port

68

27.8

170.

513

6.5

91

Flow Adj. Screw17 Hex.

Input Power Setting Screw

L57.2

167.513

251Attachment Side

Attachment Side

Discharge Port20 Dia.

4 Places“A1” Thd. “B1” Deep

Plain WasherHex. Hd. Screw

Seal CoverEnd Cover

Pilot PortM14×1.5 Thd.(With a plug)

★1

F

16.5

13.5 28

154

93.5

★3

Safety ValvePressure Adj.Screw14 Hex.

146

F D

ia.

J D

ia.H

“L” Thd.“N” Deep

K

Q

P

Q

Surface ofDischarge Port

170.

513

6.5

90

129

233258.5

Pilot Port

Fully Extended

27.8

1357.2

153

F

236.5

22 Hex. Head Plug FurnishedFilling Port★2

Discharge Port20 Dia.

4 Places“A1” Thd. “B1” Deep

Input Power Setting Screw

Plain WasherHex. Hd. Screw

Seal CoverEnd Cover

57

D

E

40

“C” Thd.Drain Port

X

85 158

Suction PortSurface of

68

Flow Adj. Screw17 Hex.

Pilot PortM14×1.5 Thd.(With a plug)

★1

View Arrow X

4 Places

“A2” Thd. “B2” Deep

183.5

30.2

58.7

Suction Port32 Dia.

F

★3

DEC.

DEC.

INC.

INC.

Page 36: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

188 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Constant Power Control Type With External Pilot

DEC.

DEC.

INC.

INC.

■ Pilot PortPilot Port is common to that of “A3HG16-FR07K-E1C/U1C/U2C/J1C”(except the height dimension from the center of the pump).Refer to page 179 for the dimensions of Pilot Port.

■ Drain PortDrain Port is common to that of pressure compensator model.Refer to page 170 or 171 for the dimensions of Drain Port.

Mounting bracket is common to that of pressure compensator model (except max height dimension). Refer to page 170 and 171 for the dimensions of mounting bracket.

■ Foot Mtg.:A3HG56-LR09V*-K-E1C/U1C/U2C/J1C, A3HG56-LR09V*-K-E1D/U1D/U2D/J1D

Install the pump so that the "Filling Port" is at the top.★2.Do not touch the screw because it is adjusted at the time of shipment.★3.

★1. Remove the plug when using the port (6 Hex. Soc.).Also the pilot port adapter is not standardaccessory, so it must be ordered separately refering to the “Pilot Port” on page 179.

Model Numbers A1 A2 B1 B2 C

A3HG56-FR09V*-K-U1D

A3HG56-FR09V*-K-E1D

A3HG56-FR09V*-K-J1D

A3HG56-FR09V*-K-U2D M12

M12

M12

M12

M12

M12 2222

2222

2222

60

G 3/4

G 3/4

G 3/4

M27×2

56

56

56

20 217/16-14 UNC

1/2-13UNC

D E F H P QJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

32+0.018+0.002 35 +0.018

-0.288 125 0-0.063

0-0.18 0-0.1835.32

35.32

0-0.1835.32

0-0.05127

127

127

0-0.05 0-0.05

50

48

48

48

31.75 0-0.05

31.75 0-0.05

31.75 0-0.05

0-0.03610

+0.03 0

+0.03 0

7.94

7.94

7.94 +0.03 0

M10 22

19

19

19

113.2

114.5

114.5

114.5

5/16-18 UNC

Pilot PortM14×1.5 Thd.(With a plug)

★1

X

71

9185

Suction PortSurface of Surface of

Discharge PortFlow Adj. Screw17 Hex.

147.

5

181.

510

2

Plain WasherHex. Hd. Screw

Seal CoverEnd Cover

F 223

69.9

35.7

Suction Port38 Dia.

4 Places

“A2” Thd. “B2” Deep

View Arrow X

158

Install the pump so that the "Filling Port" is at the top.★2.Do not touch the screw because it is adjusted at the time of shipment.★3.

★1. Remove the plug when using the port (6 Hex. Soc.).Also the pilot port adapter is not standardaccessory, so it must be ordered separately refering to the “Pilot Port” on page 179.

1357.2192.5

278

L“N” Thd.“P” Deep

4 Places“A1” Thd. “B1” Deep

Attachment Side

Discharge Port20 Dia.

27.8

78.5

166

271300

F

E

D“C” Thd.Drain Port

Pilot Port

Fully Extended

F22 Hex. Head Plug FurnishedFilling Port★2

H D

ia.

J

K D

ia. 10

6.5

Input Power Setting Screw

Safety ValvePressure Adj.Screw14 Hex.

19

174

122

R 120 Dia.

13.5 28

25+0.009 -0.004 28 +0.009

-0.294 100 0-0.054

0-0.0368

0-0.1828.18

28.18 0-0.18

0-0.05101.6

101.6 0-0.05 0-0.05

+0.03 0

+0.03 0

6.35

6.35

6.35

Model Numbers A1 A2 B1 B2 C

A3HG56-FR09V*-K-U1C

A3HG56-FR09V*-K-E1C

A3HG56-FR09V*-K-J1C

A3HG56-FR09V*-K-U2C M12

M12

M12

M12

M12

M12 M8 19

16

16

16

2222

2222

2222

52

G 3/4

G 3/4

G 3/4

M27×2

46

46

46

20 217/16-14 UNC

1/2-13UNC

D E F H P Q RJ K L N

9 36

32

32

32

42 140

146

146

146

9.7

9.7

9.7

38

38

38

0-0.0525.4

25.4

25.4

0-0.05 0-0.05

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

1/4-20 UNC

28.18 0-0.18 101.6 +0.03

0

■ Flange Mtg. Four Bolts:A3HG56-FR09V*-K-E1D/U1D/U2D/J1D

Q

P

19

28

154

13.5

146Q

Safety ValvePressure Adj.Screw14 Hex.53.5

141

246 D

K

275

Pilot Port

Fully Extended“C” Thd.Drain Port

F22 Hex. Head Plug FurnishedFilling Port ★2

F D

ia.

106.

5

J D

ia.H

“L” Thd.“N” Deep

★3Input Power Setting Screw

E

40

1357.2

167.5253

4 Places“A1” Thd. “B1” Deep

27.8

Discharge Port20 Dia.

Attachment Side

Pilot PortM14×1.5 Thd.(With a plug)

★1

X

Suction PortSurface of Surface of

Discharge PortFlow Adj. Screw17 Hex.

147.

518

1.5

102

718591

158

F

69.9

35.7

Suction Port38 Dia.

4 Places

“A2” Thd. “B2” Deep

View Arrow X

Seal CoverEnd Cover

Plain WasherHex. Hd. Screw

198

Q

■ Flange Mtg. Two Bolts:A3HG56-FR09V*-K-E1C/U1C/U2C/J1C

★3

Page 37: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

189

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Constant Power Control Type With External Pilot

DEC.

DEC.

INC.

INC.

■ Pilot PortPilot Port is common to that of “A3HG16-FR07K-E1C/U1C/U2C/J1C”(except the height dimension from the center of the pump).Refer to page 179 for the dimensions of Pilot Port.

■ Drain PortDrain Port is common to that of pressure compensator model.Refer to page 172 or 173 for the dimensions of Drain Port.

■ Foot Mtg.:A3HG71-LR09V*-K-E1D/U1D/U2D/J1D, A3HG100-LR09V*-K-E1D/U1D/U2D/J1DMounting bracket is common to that of pressure compensator model (except max height dimension). Refer to page 172 and 173 for the dimensions of mounting bracket.

★3.

Model Numbers A B C

A3HG100-FR09V*-K-U1D

A3HG100-FR09V*-K-E1D

A3HG100-FR09V*-K-J1D

A3HG100-FR09V*-K-U2D

M12

M12

M12

22

22

22

80

G 3/4

G 3/4

G 3/4

M27×2

62

62

62

211/2-13 UNC

D E F H P Q R SJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange ThreadsMetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

+0.018+0.002

+0.018 -0.288 180 0

-0.063 0-0.18

0-0.18 0-0.18

0-0.05152.4

152.4

152.4

0-0.05 0-0.05

70

54

54

54

0-0.05

0-0.05 0-0.05

0-0.04312

+0.03 0 +0.03 0

9.53

9.53

9.53 +0.03 0

M12 28

28

2828

158.4

161.6

161.6

161.6

18

21.5

21.5

21.5

T

35

39

39

39

7/16-14 UNC

56

45

45

45

40

38.1

38.1

38.1

43

42.36

42.36

42.36

Install the pump so that the "Filling Port" is at the top.★2.Do not touch the screw because it is adjusted at the time of shipment.

★1. Remove the plug when using the port (6 Hex. Soc.).Also the pilot port adapter is not standardaccessory, so it must be ordered separately refering to the “Pilot Port” on page 179.

■ Flange Mtg.:A3HG71-FR09V*-K-E1D/U1D/U2D/J1D

■ Flange Mtg.:A3HG100-FR09V*-K-E1D/U1D/U2D/J1D

Model Numbers A B C

A3HG71-FR09V*-K-U1D

A3HG71-FR09V*-K-E1D

A3HG71-FR09V*-K-J1D

A3HG71-FR09V*-K-U2D

M12

M12

M12

22

22

22

60

G 3/4

G 3/4

G 3/4

M27×2

56

56

56

211/2-13 UNC

D E F H P Q R SJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange ThreadsMetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

32 +0.018+0.002 35+0.018

-0.288 160 0-0.063

0-0.18 0-0.1835.32

35.32

0-0.1835.32

0-0.05127

127

127

0-0.05 0-0.05

50

48

48

48

31.75 0-0.05

31.75 0-0.05

31.75 0-0.05

0-0.03610

+0.03 0

+0.03 0

7.94

7.94

7.94 +0.03 0

M10 22

19

19

19

190

143

143

143

141.4

114.5

114.5

114.5

18

13.5

13.5

13.5

T U

35

28

28

28

192

155

155

155

5/16-18 UNC

Install the pump so that the "Filling Port" is at the top.★2.Do not touch the screw because it is adjusted at the time of shipment.★3.

★1. Remove the plug when using the port (6 Hex. Soc.).Also the pilot port adapter is not standardaccessory, so it must be ordered separately refering to the “Pilot Port” on page 179.

19

P

TSRU

K

22 Hex. Head Plug FurnishedFilling Port ★2

“C” Thd.Drain Port

F D

ia.

116.

5

J D

ia.H

R Q

“L” Thd.“N” Deep

★3Input Power Setting Screw “B”

★3Input Power Setting Screw “A”

Safety ValvePressure Adj.Screw14 Hex.61

1866.7

192

274.5

40

159

D

E

296.5270

31.8

F

F

Fully Extended

Pilot Port

Case Drain Port5 Hex. Soc.

Discharge Port23 Dia.

4 Places“A” Thd. “B” Deep

Attachment Side

Pilot PortM14×1.5 Thd.(With a plug)

★1 84

102 188

Suction PortSurface of Surface of

Discharge Port

Flow Adj. Screw17 Hex.

189.

515

5.5

114

View Arrow X

42.9

223.5

77.8

Suction Port51 Dia.

“A” Thd. “B” Deep

Plain WasherHex. Hd. Screw

Seal CoverEnd Cover

X

23

210

TS

R

Q

210

R

Safety ValvePressure Adj.Screw14 Hex.

322287

171

62.5

D

E

F

H D

ia.

129

K D

ia.J

“N” Thd.“P” Deep

F

F

Fully Extended

Pilot Port

27 Hex. Head Plug FurnishedFilling Port★2

“C” Thd.Drain Port

Input Power Setting Screw “B”

★3

★3

Input Power Setting Screw “A”

17.566.7211.5

31.8

Discharge Port23 Dia.

L

300Attachment Side

4 Places“A” Thd. “B” Deep

Case Drain Port5 Hex. Soc.

195

161

118.

5

View Arrow X

50.8

243

88.9

Suction Port63 Dia.

“A” Thd. “B” Deep

X

83

112.5 198.5

Suction PortSurface of Surface of

Discharge Port

Flow Adj. Screw17 Hex.

Pilot PortM14×1.5 Thd.(With a plug)

★1Plain WasherHex. Hd. Screw

Seal CoverEnd Cover

Page 38: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

190 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Constant Power Control Type With External Pilot

DEC.

DEC.

INC.

INC.

■ Pilot PortPilot Port is common to that of “A3HG16-FR07K-E1C/U1C/U2C/J1C”(except the height dimension from the center of the pump).Refer to page 179 for the dimensions of Pilot Port.

■ Drain PortDrain Port is common to that of pressure compensator model.Refer to page 174 or 175 for the dimensions of Drain Port.

Mounting bracket is common to that of pressure compensator model (except max. height dimension). Refer to page 174 and 175 for the dimensions of mounting bracket.

■ Foot Mtg.:A3HG145-LR09V*-K-E1D/U1D/U2D/J1D, A3HG180-LR09V*-K-E1D/U1D/U2D/J1D

■ Flange Mtg.:A3HG145-FR09V*-K-E1D/U1D/U2D/J1D

Install the pump so that the "Filling Port" is at the top.★2.Do not touch the screw because it is adjusted at the time of shipment.★3.

★1. Remove the plug when using the port (6 Hex. Soc.).Also the pilot port adapter is not standardaccessory, so it must be ordered separately refering to the “Pilot Port” on page 179.

Install the pump so that the "Filling Port" is at the top.★2.Do not touch the screw because it is adjusted at the time of shipment.★3.

★1. Remove the plug when using the port (6 Hex. Soc.).Also the pilot port adapter is not standardaccessory, so it must be ordered separately refering to the “Pilot Port” on page 179.

■ Flange Mtg.:A3HG180-FR09V*-K-E1D/U1D/U2D/J1D

Model Numbers A2A1 B2B1 C

A3HG180-FR09V*-K-U1D

A3HG180-FR09V*-K-E1D

A3HG180-FR09V*-K-J1D

A3HG180-FR09V*-K-U2D

M16

M16

M16

M12

M12

M12

29

29

29

92

G 3/4

G 3/4

G 3/4

M27×2

75

75

75

29

22

22

22

215/8-11 UNC

1/2-13 UNC

D E F H P Q R SJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

+0.018+0.002

+0.018 -0.288 180 0

-0.063

0-0.18 0-0.18 0-0.18

0-0.05152.4

152.4

152.4

0-0.05 0-0.05

82

67

67

67

0-0.05 0-0.05 0-0.05

0-0.04314

+0.03 0 +0.03 0

11.11

11.11

11.11 +0.03 0

M16 36

32

32

32

158.4

161.6

161.6

161.6

18

21.5

21.5

21.5

T

35

39

39

39

1/2-13 UNC

70

56

56

56

45

44.45

44.45

44.45

48.5

49.39

49.39

49.39

Model Numbers A B C

A3HG145-FR09V*-K-U1D

A3HG145-FR09V*-K-E1D

A3HG145-FR09V*-K-J1D

A3HG145-FR09V*-K-U2D

M12

M12

M12

22

22

22

92

G 3/4

G 3/4

G 3/4

M27×2

75

75

75

211/2-13 UNC

D E F H P Q R SJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

+0.018+0.002

+0.018 -0.288 180 0

-0.063

0-0.18 0-0.18 0-0.18

0-0.05152.4

152.4

152.4

0-0.05 0-0.05

82

67

67

67

0-0.05 0-0.05 0-0.05

0-0.04314

+0.03 0 +0.03 0

11.11

11.11

11.11 +0.03 0

M16 36

32

32

32

158.4

161.6

161.6

161.6

18

21.5

21.5

21.5

T

35

39

39

39

1/2-13 UNC

70

56

56

56

45

44.45

44.45

44.45

48.5

49.39

49.39

49.39

Pilot PortM14×1.5 Thd.(With a plug)

★180.5

129 243

253.5

66.7

Suction PortSurface of Surface of

Discharge Port

175.

520

9.5

138

Plain WasherHex. Hd. Screw

362.5

View Arrow X

61.9297.5

106.

4

Suction Port76 Dia.

“A2” Thd. “B2” Deep

Flow Adj. Screw19 Hex.

31.8

Attachment Side

Seal CoverEnd Cover

Discharge Port32 Dia.

4 Places“A1” Thd. “B1” Deep

Case Drain Port5 Hex. Soc.

384.5352.5

86

24

E

F

221.5 DPilot Port

F 27 Hex. Head Plug FurnishedFilling Port★2

“C” Thd.Drain Port

H D

ia.

148

K D

ia.J

“N” Thd.“P” Deep

Input Power Setting Screw “B”★3

Fully Extended

★3Input Power Setting Screw “A”

L

27.5

S

R220

T

Q

R 210

Safety ValvePressure Adj.Screw14 Hex.

210

★3Input Power Setting Screw “A”

★3

26

220

Safety ValvePressure Adj.Screw14 Hex.

Q

R

S T

R

345.5321.5

194.5 D

E

L

F

74

22

Fully Extended

Pilot Port

27 Hex. Head Plug FurnishedFilling Port★2

“C” Thd.Drain Port

H D

ia.

138.

5

K D

ia.J

“N” Thd.“P” Deep

Input Power Setting Screw “B”222.5

323.5

66.7

Surface ofDischarge Port

201.

516

7.5

129

F

F

31.8

Attachment Side

Plain WasherHex. Hd. Screw

Seal CoverEnd Cover

Discharge Port32 Dia.

4 Places“A” Thd. “B” Deep

Case Drain Port15 Hex. Soc.

Pilot PortM14×1.5 Thd.(With a plug)

★1 86.5

123 234

Suction PortSurface of

Flow Adj. Screw19 Hex.

X

View Arrow X

50.8

266.5

88.9

Suction Port63 Dia.

“A” Thd. “B” Deep

X

F

Page 39: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

191

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Load Sensing Type

Graphic Symbol

■ Specifications

Model NumbersGeometric

Displacementcm3/rev

Operating Pressure★1

MPaLoad Sensing

Pres. DifferenceΔP

MPa

Shaft Speed Ranger/min

Approx. Masskg

Rated Intermittent Max.★3 Min. FlangeMtg.

FootMtg.

A3HG16-*R14*-*C-11 16.3

31.5 351.5★2

(At the time of shipment)

3600 600 19.5 23.5A3HG37-*R14*-*C-11

37.1 2700 600 2937.5

A3HG37-*R14*-*D-11 36.5A3HG56-*R14*-*C-11

56.3 2500 60037 45.5

A3HG56-*R14*-*D-11 35 42.5A3HG71-*R14*-E1D-11

70.7 2300 60047.5 73.5

A3HG71-*R14*-U1D/U2D/J1D-11 44 51.5A3HG100-*R14K-E1D-11

100.5 2100 60059 84

A3HG100-*R14SP-E1D-11 58.5 83.5A3HG100-*R14*-U1D/U2D/J1D-11 58.5 85.5A3HG145-*R14K-E1D-11

145.2 1800 60071 97

A3HG145-*R14SP-E1D-11 70.5 96.5A3HG145-*R14*-U1D/U2D/J1D-11 70.5 98A3HG180-*R14K-E1D-11

180.7 1800 60090.5 116.5

A3HG180-*R14SP-E1D-11 90 116A3HG180-*R14*-U1D/U2D/J1D-11 90 117.5

★1. The operating pressure means pump discharge pressure.★2. Load pressure difference is adjustable in range of 1.0 -3.0 MPa★3. The maximum shaft speeds shown in the above table are at suction pressure 0 kPa.

A3HG Series high Pressure Variable Displacement Piston Pumps Load Sensing Type

PLPP

S DR

M0

PC

FC

⊿P

★ A flow control valve is not includedwith the pump. Install the valve separately.

■ Model Number Designation

A3HG16 -F R 14 K -E1★ D -11

Series Number Mounting Direction of Rotation Control Type Shaft

Extension

Main Pump Mtg. FlangeConnecting Port / Pipe Flange Thread

Second Pump Mtg.

Number of Pump Mtg.

Bolts

Design Number

A3HG16(16.3 cm3/rev)

F: Flange Mtg.

L: Foot Mtg.

(Viewed from)Shaft End

R: Clockwise (Normal)

14: Load SensingType

K: Keyed Shaft

SP: Splined Shaft

CodeMain Pump Mtg.

Flange

Connecting Port

Pipe Flange Thread

Second Pump Mtg.

E1 ISO Metric Metric ISOU1 SAE Unified Unified SAEU2 SAE BSPP Metric SAEJ1 SAE Rc Metric SAE

C: 2 11

A3HG37(37.1 cm3/rev) C: 2

D: 4

11

A3HG56(56.3 cm3/rev) 11

A3HG71(70.7 cm3/rev)

D: 4

11

A3HG100(100.5 cm3/rev) 11

A3HG145(145.2 cm3/rev) 11

A3HG180(180.7 cm3/rev) 11

★ SAE type is also available for the second pump mounting when using ISO type for the main pump mounting flange. Consult Yuken for details.

Page 40: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

192 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Load Sensing Type

20

40

60

80

100

120

140

0

Out

put F

low

L/m

in

Load Sensing Pressure Difference

Pressure MPa

50 10 15 20 25 30 35

N=1800 r/min

⊿P=1.5 MPa

2

4

6

8

10

12

14

16

0

kWFu

ll C

ut-o

ff P

ower

2300 r/min

1800 r/min1500 r/min

Full Cut-off Pressure MPa

50 10 15 20 25 30 35

L/m

inD

rain

2300 r/min1800 r/min1500 r/min

2300 r/min1800 r/min1500 r/min

5

10

15

20

0

1/4Q 1800r/min1/2Q 1800r/min

Pressure MPa

50 10 15 20 25 30 35

Flow Control

Max.Q

Full Cut-o

ff

■ Pipe Flange KitsPipe flange mouting surface conforms to SAE J 518, 4 bolt split flange.Pipe flange kits are not available.Contact us for the details.

■ Pressure vs. Output Flow

■ Full Cut-off Power

■ Drain

Typical Performance Characteristics of Type “A3HG71” at Viscosity 32 mm2/s [ISO VG32 oils,40°C]

Page 41: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

193

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Load Sensing Type

■ Flange Mtg.:A3HG16-FR14K-E1C/U1C/U2C/J1CFilling PortLoad Sensing Port

DEC.

INC. INC.

■ Load Sensing Port/Pilot Port

Mounting bracket is common to that of pressure compensator model (except max height dimension). Refer to page 167 for the dimensions of mounting bracket.

■ Foot Mtg.:A3HG16-LR14K-E1C/U1C/U2C/J1C

■ Drain PortDrain Port is common to that of pressure compensator model.Refer to page 167 for the dimensions of Drain Port.

Load Sensing Port is common to that of Pilot Port(except the height dimension from the center of the pump).Refer to page 179 for the dimensions of Pilot Port.

18 +0.008 -0.003 20.5+0.008

-0.133 80 0-0.046

0-0.036

0-0.1621.24 0-0.1621.24 0-0.1621.24

0-0.0582.55 0-0.0582.55 0-0.0582.55

+0.03 0 +0.03 0

4.76

+0.03 04.76

4.76

Model Numbers A B C

A3HG16-FR14K-U1C

A3HG16-FR14K-E1C

A3HG16-FR14K-J1C

A3HG16-FR14K-U2C M10

M10

M10

19

19 36

G 1/2

G 1/2

G 1/2

M22×1.5

41

41

4119

173/8-16 UNC

D E F H L NJ K

22 28 109

106

106

106

28 33

33

33

28

28

0-0.0319.05 0-0.0319.05 0-0.0319.05

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

★2.★1.

Install the pump so that the "Filling Port" is at the top.★3.

Remove the plug (6 Hex. Soc.), install piping with refering to the graphic symbol on page 191.

Remove the plug when using the port (6 Hex. Soc.).Also the pilot port adapter is not standardaccessory, so it must be ordered separately refering to the “Pilot Port” on page 179.

Connecting Port

14 Hex.

Pressure Adj. Screw

57.5Load Sensing

Pilot Port76.5 61.5

65.580.5

171

26.2

166.5

52.4

Suction PortSurface of

13 Hex.

Load Sensing

Adj. ScrewDifferencial Press.

79

45°

95 Dia.

7179.5 11

81N

130

L45°

28

Pilot Port M14×1.5

★3

4 Places“A” Thd. “B” Deep

Flow Adj. Screw13 Hex.

Suction Port26 Dia.

(With a plug)

221

110 6.4

46

1023.8

E

K

212.5 D

M14×1.5★2★1

22 Hex. Head Plug Furnished

Fully ExtendedDrain Port “C” Thd.

F D

ia.

H

J D

ia.

DIN332-R3.15×6.7Center Hole

203Attachment Side

Surface ofDischarge Port

(With a plug)

166.5

140

50.8

144

81

GasketEnd Cover

Plain Washer

Soc. Hd. Cap Screw

Discharge Port19 Dia.

4 Places“A” Thd. “B” Deep

Page 42: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

194 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Load Sensing Type

DEC.

INC.

INC.INC.

INC.

■ Flange Mtg. Two Bolts:A3HG37-FR14K-E1C/U1C/U2C/J1C

■ Flange Mtg. Four Bolts:A3HG37-FR14K-E1D/U1D/U2D/J1D

Load Sensing Port is common to that of Pilot Port(except the height dimension from the center of the pump).Refer to page 179 for the dimensions of Pilot Port.

■ Drain PortDrain Port is common to that of pressure compensator model.Refer to page 168 or 169 for the dimensions of Drain Port.

Mounting bracket is common to that of pressure compensator model (except max height dimension). Refer to page 168 and 169 for the dimensions of mounting bracket.

■ Foot Mtg.:A3HG37-LR14K-E1C/U1C/U2C/J1C, A3HG37-LR14K-E1D/U1D/U2D/J1D

■ Load Sensing Port/Pilot Port

32 +0.018+0.002 35 +0.018

-0.288 125 0-0.063

0-0.03610

0-0.1835.32 0-0.1835.32 0-0.1835.32

0-0.05127

127

127

0-0.05 0-0.05

+0.03 0 +0.03 0

7.94

7.94

7.94 +0.03 0

Model Numbers A1 A2 B1 B2 C

A3HG37-FR14K-U1D

A3HG37-FR14K-E1D

A3HG37-FR14K-J1D

A3HG37-FR14K-U2D M10

M10

M12

M12

M12

M10 M10 22

19

19

19

1822

1822

1822

60

G 1/2

G 1/2

G 1/2

M22×1.5

56

56

56

207/16-14 UNC

D E F H P QJ K L N

9 50 113.2

114.5

114.5

114.5

12.7

12.7

12.7

48

48

48

31.75 0-0.05

31.75 0-0.05

31.75 0-0.05

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

5/16-18 UNC

★3. Install the pump so that the "Filling Port" is at the top.

★2.★1.

Remove the plug when using the port (6 Hex. Soc.).Also the pilot port adapter is not standardaccessory, so it must be ordered separately refering to the “Pilot Port” on page 179.

Remove the plug (6 Hex. Soc.), install piping with refering to the graphic symbol on page 191.

25 +0.009 -0.004 28+0.009

-0.294 100 0-0.054

0-0.0368

0-0.1828.18

28.18

28.18

0-0.18 0-0.18

0-0.05101.6

101.6

101.6

0-0.05 0-0.05

+0.03 0 +0.03 0 +0.03 0

6.35

6.35

6.35

Model Numbers A1 A2 B1 B2 C

A3HG37-FR14K-U1C

A3HG37-FR14K-E1C

A3HG37-FR14K-J1C

A3HG37-FR14K-U2C M10

M10

M12

M12

M12

M10 M8 19

16

16

16

1822

1822

1822

52

G 1/2

G 1/2

G 1/2

M22×1.5

46

46

46

207/16-14 UNC

D E F H P Q RJ K L N

9 36

32

32

32

42 140

146

146

146

9.7

9.7

9.7

38

38

38

0-0.0525.4

25.4

25.4

0-0.05 0-0.05

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

1/4-20 UNC

★3. Install the pump so that the "Filling Port" is at the top.

★2.★1.

Remove the plug when using the port (6 Hex. Soc.).Also the pilot port adapter is not standardaccessory, so it must be ordered separately refering to the “Pilot Port” on page 179.

Remove the plug (6 Hex. Soc.), install piping with refering to the graphic symbol on page 191.View Arrow X

4 Places

“A2” Thd. “B2” Deep

198

30.2

58.7

Suction Port32 Dia.

X

59

85 85

67

Suction PortSurface of Surface of

Discharge Port

Discharge Port24 Dia.

4 Places“A1” Thd. “B1” Deep

★1Load Sensing Port M14×1.5(With a plug)

Pilot PortM14×1.5 Thd.

★2

(With a plug)

148.

514

4.5

91

Flow Adj. Screw17 Hex.

Seal CoverEnd Cover

Plain Washer

273247.5

203.5

142.5

71.5

27.8

198

EF

L13

D

57.2

H D

ia.

93.5

K D

ia.

251Attachment Side

Hex. Hd. Screw

22 Hex. Head Plug FurnishedFilling Port★3

“C” Thd.Drain Port

“N” Thd.“P” Deep

13 Hex.

Differencial Press.Adj. Screw 16.5

174

120 Dia.

R

13.5

28

122

Safety ValvePressure Adj.Screw14 Hex.

Pilot Port

Load Sensing PortLoad Sensing

57.2

148.

514

4.5

90

View Arrow X

4 Places

“A2” Thd. “B2” Deep

183.5

30.2

58.7

Suction Port32 Dia.

X

5967

85 85

258.5

233

189

128

57

1327.8183.5

Suction PortSurface of Surface of

Discharge Port

Fully Extended

236.5Attachment Side

Seal CoverEnd Cover

Flow Adj. Screw17Hex.

Plain WasherHex. Hd. Screw

Discharge Port24 Dia.

4 Places“A1” Thd. “B1” Deep

Load Sensing Port M14×1.5

★1

(With a plug)

Pilot PortM14×1.5 Thd.

★2

(With a plug)

Pilot Port

Load Sensing Port 16.5

2813.5

154Q

P

146

Q

Safety ValvePressure Adj.Screw14 Hex.

D

40

K

E

22 Hex. Head Plug FurnishedFilling Port★3

“C” Thd.Drain Port

F D

ia.

93.5

J D

ia.H

“L” Thd.“N” Deep

13 Hex.

Differencial Press.Adj. Screw

Load Sensing

Pipe Flange Threads

Connecting Port

Q

J

Fully Extended

DEC.

Page 43: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

195

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Load Sensing Type

DEC.

DEC.

INC.

INC.

INC.

INC.

★3. Install the pump so that the "Filling Port" is at the top.

★2.★1.

Remove the plug when using the port (6 Hex. Soc.).Also the pilot port adapter is not standardaccessory, so it must be ordered separately refering to the “Pilot Port” on page 179.

Remove the plug (6 Hex. Soc.), install piping with refering to the graphic symbol on page 191.

★3. Install the pump so that the "Filling Port" is at the top.

★2.★1.

Remove the plug when using the port (6 Hex. Soc.).Also the pilot port adapter is not standardaccessory, so it must be ordered separately refering to the “Pilot Port” on page 179.

Remove the plug (6 Hex. Soc.), install piping with refering to the graphic symbol on page 191.

■ Flange Mtg. Two Bolts:A3HG56-FR14K-E1C/U1C/U2C/J1C

■ Flange Mtg. Four Bolts:A3HG56-FR14K-E1D/U1D/U2D/J1D

Load Sensing Port is common to that of Pilot Port(except the height dimension from the center of the pump).Refer to page 179 for the dimensions of Pilot Port.

■ Drain PortDrain Port is common to that of pressure compensator model.Refer to page 170 or 171 for the dimensions of Drain Port.

Mounting bracket is common to that of pressure compensator model (except max height dimension). Refer to page 170 and 171 for the dimensions of mounting bracket.

■ Foot Mtg.:A3HG56-LR14K-E1C/U1C/U2C/J1C, A3HG56-LR14K-E1D/U1D/U2D/J1D

■ Load Sensing Port/Pilot Port

25+0.009 -0.004 28+0.009

-0.294 100 0-0.054

0-0.0368

0-0.1828.18

28.18

28.18

0-0.18 0-0.18

0-0.05101.6

101.6

101.6

0-0.05 0-0.05

+0.03 0

+0.03 0

6.35

6.35

6.35 +0.03 0

Model Numbers A1 A2 B1 B2 C

A3HG56-FR14K-U1C

A3HG56-FR14K-E1C

A3HG56-FR14K-J1C

A3HG56-FR14K-U2C M12

M12

M12

M12

M12

M12 M8 19

16

16

16

2222

2222

2222

52

G 3/4

G 3/4

G 3/4

M27×2

46

46

46

20 217/16-14 UNC

1/2-13UNC

D E F H P Q RJ K L N

9 36

32

32

32

42 140

146

146

146

9.7

9.7

9.7

38

38

38

0-0.0525.4

25.4

25.4

0-0.05 0-0.05

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

1/4-20 UNC

Suction Port

Model Numbers A1 A2 B1 B2 C

A3HG56-FR14K-U1D

A3HG56-FR14K-E1D

A3HG56-FR14K-J1D

A3HG56-FR14K-U2D M12

M12

M12

M12

M12

M12 2222

2222

2222

60

G 3/4

G 3/4

G 3/4

M27×2

56

56

56

20 217/16-14 UNC

1/2-13UNC

D E F H P QJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

32 +0.018+0.002 35 +0.018

-0.288 125 0-0.063

0-0.18 0-0.1835.32

35.32

0-0.1835.32

0-0.05127

127

127

0-0.05 0-0.05

50

48

48

48

31.75 0-0.05

31.75 0-0.05

31.75 0-0.05

0-0.03610 +0.03 0

+0.03 0

7.94

7.94

7.94 +0.03 0

M10 22

19

19

19

113.2

114.5

114.5

114.5

5/16-18 UNC

Pipe Flange Threads

Connecting Port

Pipe Flange Threads

Connecting Port

19

13 Hex.

Differencial Press.Load Sensing

Adj. Screw

14 Hex.

13.5 28

154Q

P

146

Q

22 Hex. Head Plug Furnished

Filling Port★3

“C” Thd.Drain Port

K

F D

ia.

106.

5

J D

ia.

H

“L” Thd.“N” Deep

Safety ValvePressure Adj. Screw

13

198

27.8

Fully Extended

57.2

275246

201

53.5 40

140 E

D

253Attachment Side

Seal CoverEnd Cover

Plain WasherHex. Hd. Screw

Pilot Port

Load Sensing Port

Surface ofDischarge Port

Discharge Port26 Dia.

4 Places“A1” Thd. “B1” Deep

85 85

Suction PortSurface of

627091

Flow Adj. Screw17 Hex.

159.

510

2

155.

5

X

198

69.9

35.7

Suction Port38 Dia.

4 Places

“A2” Thd. “B2” Deep

View Arrow X

Pilot PortM14×1.5 Thd.

★2

(With a plug)

M14×1.5 Thd.Load Sensing Port★1

(With a plug)10

6.5

122

13.5

28

Safety ValvePressure Adj. Screw14 Hex.

13 Hex.

Differencial Press.Load Sensing

Adj. Screw

19

Q

R

174120 Dia.1327.8

223

L

H D

ia.

J

K D

ia.

“N” Thd.“P” Deep

300271

226

165

78.5

D

E

F

Fully Extended22 Hex. Head Plug Furnished

Filling Port★3

“C” Thd.Drain Port

Pilot Port

Load Sensing Port

278Attachment Side

Seal CoverEnd Cover

159.

515

5.5

102

57.2

Plain WasherHex. Hd. Screw

Discharge Port26 Dia.

4 Places“A1” Thd. “B1” Deep

Surface ofDischarge Port

M14×1.5 Thd.Load Sensing Port

917062

Pilot PortM14×1.5 Thd.

★2

★1 Flow Adj. Screw17 Hex.

(With a plug)

(With a plug)

223

69.9

35.7

Suction Port38 Dia.

4 Places

“A2” Thd. “B2” Deep

View Arrow X

X

85 85

Surface of

Page 44: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

196 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Load Sensing Type

■ Drain PortDrain Port is common to that of pressure compensator model.Refer to page 172 or 173 for the dimensions of Drain Port.

■ Foot Mtg.:A3HG71-LR14K-E1D/U1D/U2D/J1D, A3HG100-LR14K-E1D/U1D/U2D/J1DMounting bracket is common to that of pressure compensator model (except max height dimension). Refer to page 172 and 173 for the dimensions of mounting bracket.

Load Sensing Port is common to that of Pilot Port(except the height dimension from the center of the pump).Refer to page 179 for the dimensions of Pilot Port.

■ Load Sensing Port/Pilot Port

★3. Install the pump so that the "Filling Port" is at the top.

★2.★1.

Remove the plug when using the port (6 Hex. Soc.).Also the pilot port adapter is not standardaccessory, so it must be ordered separately refering to the “Pilot Port” on page 179.

Remove the plug (6 Hex. Soc.), install piping with refering to the graphic symbol on page 191.

Model Numbers A B C

A3HG100-FR14K-U1D

A3HG100-FR14K-E1D

A3HG100-FR14K-J1D

A3HG100-FR14K-U2D

M12

M12

M12

22

22

22

80

G 3/4

G 3/4

G 3/4

M27×2

62

62

62

211/2-13 UNC

D E F H P Q R SJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

+0.018+0.002

+0.018 -0.288 180 0

-0.063 0-0.18

0-0.18 0-0.18

0-0.05152.4

152.4

152.4

0-0.05 0-0.05

70

54

54

54

0-0.05

0-0.05

0-0.05

0-0.04312

+0.03 0 +0.03 0

9.53

9.53

9.53 +0.03 0

M12 28

28

28

28

158.4

161.6

161.6

161.6

18

21.5

21.5

21.5

T

35

39

39

39

7/16-14 UNC

56

45

45

45

40

38.1

38.1

38.1

43

42.36

42.36

42.36

■ Flange Mtg.:A3HG71-FR14K-E1D/U1D/U2D/J1D

■ Flange Mtg.:A3HG100-FR14K-E1D/U1D/U2D/J1D

★3. Install the pump so that the "Filling Port" is at the top.

★2.★1.

Remove the plug when using the port (6 Hex. Soc.).Also the pilot port adapter is not standardaccessory, so it must be ordered separately refering to the “Pilot Port” on page 179.

Remove the plug (6 Hex. Soc.), install piping with refering to the graphic symbol on page 191.

Model Numbers A B C

A3HG71-FR14K-U1D

A3HG71-FR14K-E1D

A3HG71-FR14K-J1D

A3HG71-FR14K-U2D

M12

M12

M12

22

22

22

60

G 3/4

G 3/4

G 3/4

M27×2

56

56

56

211/2-13 UNC

D E F H P Q R SJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

32 +0.018+0.002 35 +0.018

-0.288 160 0-0.063

0-0.18 0-0.1835.32

35.32

0-0.1835.32

0-0.05127

127

127

0-0.05 0-0.05

50

48

48

48

31.75 0-0.05

31.75 0-0.05

31.75 0-0.05

0-0.03610

+0.03 0

+0.03 0

7.94

7.94

7.94 +0.03 0

M10 22

19

19

19

190

143

143

143

141.4

114.5

114.5

114.5

18

13.5

13.5

13.5

T U

35

28

28

28

192

155

155

155

5/16-18 UNC

Pipe Flange Threads

Connecting Port

23

Q

R

S T

210

H D

ia.

129

210

K D

ia.

R

J

13 Hex.

Differencial Press.Load Sensing

Adj. ScrewSafety ValvePressure Adj. Screw14 Hex.

322287

231

170 D

E

F

L

62.5

17.531.8

243

66.7

167

171

118.

5

Fully Extended

27 Hex. Head Plug FurnishedFilling Port★3

Drain Port “C” Thd.

“N” Thd.“P” Deep

300Attachment Side

Plain WasherHex. Hd. Screw

Discharge Port34 Dia.

4 Places“A” Thd. “B” Deep

Case Drain Port5 Hex. Soc.

Pilot Port

Load Sensing Port68.5

112.5 112.578

88.9

50.8Suction Port63 Dia.

View Arrow X

4 Places

“A” Thd. “B” Deep

243

X

Pilot PortM14×1.5 Thd.

★2

Suction PortSurface of

M14×1.5 Thd.Load Sensing Port

Surface ofDischarge Port

Flow Adj. Screw17 Hex.

Seal CoverEnd Cover

★1

(With a plug)

(With a plug)

D

E

P

K

SRU

T18

223.5

4019

22 Hex. Head Plug FurnishedFilling Port★3

“C” Thd.Drain Port

F D

ia.

116.

5

J D

ia.

H

Q R

“L” Thd.“N” Deep

274.5Attachment Side

13 Hex.

Differencial Press.Load Sensing

Adj. Screw Safety ValvePressure Adj. Screw14 Hex.

Case Drain Port5 Hex. Soc.

296.5270

219

158

61

31.8102102

Flow Adj. Screw17 Hex.

165.

5

66.7

161.

511

4

Surface ofDischarge Port

Fully Extended

Seal CoverEnd Cover

Plain WasherHex. Hd. Screw

Discharge Port34 Dia.

4 Places“A” Thd. “B” Deep

Pilot Port

Load Sensing Port

42.9223.5

77.8

Suction Port51 Dia.

4 Places

“A” Thd. “B” Deep

View Arrow X

X

7969.5

Suction PortSurface of

M14×1.5 Thd.Load Sensing Port★1

(With a plug)

Pilot PortM14×1.5 Thd.

★2

(With a plug)

Pipe Flange Threads

Connecting Port

DEC.

DEC.

INC.

INC.

INC.

INC.

Page 45: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

197

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Load Sensing Type

DEC.

DEC.

INC.

INC.INC.

INC.

■ Flange Mtg.:A3HG145-FR14K-E1D/U1D/U2D/J1D

■ Flange Mtg.:A3HG180-FR14K-E1D/U1D/U2D/J1D

■ Drain Port

■ Foot Mtg.:A3HG145-LR14K-E1D/U1D/U2D/J1D, A3HG180-LR14K-E1D/U1D/U2D/J1D

■ Load Sensing Port/Pilot Port

Drain Port is common to that of pressure compensator model.Refer to page 174 or 175 for the dimensions of Drain Port.

Mounting bracket is common to that of pressure compensator model. Refer to page 174 and 175 for the dimensions of mounting bracket.

Load Sensing Port is common to that of Pilot Port (except the height dimension from the center of the pump).Refer to page 179 for the dimensions of Pilot Port.

★3. Install the pump so that the "Filling Port" is at the top.

★2.★1.

Remove the plug when using the port (6 Hex. Soc.).Also the pilot port adapter is not standardaccessory, so it must be ordered separately refering to the “Pilot Port” on page 179.

Remove the plug (6 Hex. Soc.), install piping with refering to the graphic symbol on page 191.

★3. Install the pump so that the "Filling Port" is at the top.

★2.★1.

Remove the plug when using the port (6 Hex. Soc.).Also the pilot port adapter is not standardaccessory, so it must be ordered separately refering to the “Pilot Port” on page 179.

Remove the plug (6 Hex. Soc.), install piping with refering to the graphic symbol on page 191.

Model Numbers A B C

A3HG145-FR14K-U1D

A3HG145-FR14K-E1D

A3HG145-FR14K-J1D

A3HG145-FR14K-U2D

M12

M12

M12

22

22

22

92

G 3/4

G 3/4

G 3/4

M27×2

75

75

75

211/2-13 UNC

D E F H P Q R SJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

+0.018+0.002

+0.018 -0.288 180 0

-0.063

0-0.18 0-0.18 0-0.18

0-0.05152.4

152.4

152.4

0-0.05 0-0.05

82

67

67

67

0-0.05

0-0.05 0-0.05

0-0.04314

+0.03 0 +0.03 0

11.11

11.11

11.11 +0.03 0

M16 36

32

32

32

158.4

161.6

161.6

161.6

18

21.5

21.5

21.5

T

35

39

39

39

1/2-13 UNC

70

56

56

56

45

44.45

44.45

44.45

48.5

49.39

49.39

49.39

View Arrow X

Model Numbers A B C

A3HG180-FR14K-U1D

A3HG180-FR14K-E1D

A3HG180-FR14K-J1D

A3HG180-FR14K-U2D

M16

M16

M16

29

29

29

92

G 3/4

G 3/4

G 3/4

M27×2

75

75

75

295/8-11 UNC

D E F H P Q R SJ K L N

9

12.7

12.7

12.7

Mounting Flange

Conforms to ISO 3019-2

Conforms to SAE J744

Conforms to SAE J744

Pipe Flange Threads

MetricMetric

Metric

Metric

UnifiedUnified

BSPP

Rc

Connecting Port

+0.018+0.002

+0.018 -0.288 180 0

-0.063 0-0.18 0-0.18

0-0.05152.4

152.4

152.4

0-0.05

82

67

67

67

0-0.05 0-0.05

0-0.04314

+0.03 0 +0.03 0

11.11

11.11

11.11

M16 36

32

32

32

158.4

161.6

161.6

161.6

18

21.5

21.5

21.5

T

35

39

39

39

1/2-13 UNC

70

56

56

56

45

44.45

44.45

44.45

48.5

49.39

49.39

49.39 Conforms to SAE J744 0-0.18

0-0.05

0-0.05

+0.03 0

22

27 Hex. Head Plug FurnishedFilling Port★3

D

Q

E

F

S TR

220

“C” Thd.Drain Port

138.

5

210

H D

ia.

K D

ia.J

R

“N” Thd.“P” Deep

5 Hex. Soc.Case Drain Port

13 Hex.

Differencial Press.Load Sensing

Adj. ScrewSafety ValvePressure Adj. Screw14 Hex.

26

345.5321.5

254.5

193.5

74

31.8

266.5

Fully Extended

L

323.5Attachment Side

66.7

Plain WasherHex. Hd. Screw

Discharge Port34 Dia.

4 Places“A” Thd. “B” Deep

Pilot Port

Load Sensing Port

123 123

72

81.5

Suction PortSurface of

Flow Adj. Screw19 Hex.

Surface ofDischarge Port

M14×1.5 Thd.Load Sensing Port

Suction Port63 Dia.

4 Places50.8

“A” Thd. “B” Deep

88.9

177.

517

3.5

129

Seal CoverEnd Cover

266.5

★1

Pilot PortM14×1.5 Thd.

★2

(With a plug)

(With a plug)

X

129

6675.5

129Pilot PortM14×1.5 Thd.

★2

Suction PortSurface of

Flow Adj. Screw19 Hex.M14×1.5 Thd.

Load Sensing Port

Surface ofDischarge Port

(With a plug)

(With a plug)

★1

297.5

61.9

106.

4

View Arrow X

Suction Port76 Dia.4 Places

“A” Thd. “B” Deep

79.4

Seal CoverEnd Cover

Plain WasherHex. Hd. Screw

Discharge Port44 Dia.

4 Places“A” Thd. “B” Deep

181.

513

8

X

190

384.5352.5

281.5

220.5

86

D

E

F

L

148

Fully Extended

27 Hex. Head Plug FurnishedFilling Port★3

“C” Thd.Drain Port

H D

ia.

K D

ia.J

“N” Thd.“P” Deep2436.5

297.5362.5

Attachment Side5 Hex. Soc.Case Drain Port

Pilot Port

Load Sensing Port27.5

SR

T

Q

210

R

220

13 Hex.

Differencial Press.Load Sensing

Adj. ScrewSafety ValvePressure Adj. Screw14 Hex.

Page 46: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

198 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Load Sensing Type

■ Mounting Interchangeability between Old and New ModelsLoad sensing type A3HG series piston pumps were remodeled to enhance the reliability of the products.

● Major ChangesControl valves were changed.

● Design NumberDesign Number 10 → Design Number 11

● Mounting InterchangeabilityNot interchangeableThe mounting positions for a load sensing port and a pilot port are changed. See the following page for details.

● Performance (example : A3HG71)

Pressure vs.

Output Flow

Drain

Old Model New ModelName

L/m

inD

rain

2300 r/min1800 r/min1500 r/min

2300 r/min1800 r/min1500 r/min

5

10

15

20

0

1/4Q 1800r/min1/2Q 1800r/min

Pressure MPa

50 10 15 20 25 30 35

Flow Control

Max.Q

Full Cut-off

20

40

60

80

100

120

140

0

Out

put F

low

L/m

in

Pressure

Load Sensing Pressure Difference

MPa50 10 15 20 25 30 35

N=1800 r/min⊿P=1.5 MPa ⊿P=1.5 MPa

20

40

60

80

100

120

140

0

Out

put F

low

L/m

in

Pressure

Load Sensing Pressure Difference

MPa50 10 15 20 25 30 35

N=1800 r/min

L/m

inD

rain

2300 r/min1800 r/min1500 r/min

2300 r/min1800 r/min1500 r/min

5

10

15

20

0

1/4Q 1800r/min1/2Q 1800r/min

Pressure MPa

50 10 15 20 25 30 35

Flow Control

Max.Q

Full Cut-off

Page 47: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

199

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Load Sensing Type

PLPP

S DR

M0

PC

FC

PLPP

S DR

M0

PC

FC

⊿P⊿P

Old ModelModel Number Model Number

New ModelA B C D E F H A’ B’ C’ D’ E’ F’ H’

A3HG16-*R14*-*C-10 A3HG16-*R14*-*C-1175.589.5 80.531.5 142 146 138.5 131.5 65.5 57.5 140 144 171 110

A3HG37-*R14*-*D-10 A3HG37-*R14*-*D-11 8591 77 33 146.5 150.5 156.5 149.5 67 59 144.5 148.5 189 128A3HG37-*R14*-*C-10 A3HG37-*R14*-*C-11 857791 33 146.5 150.5 171 164 67 59 144.5 148.5 203.5 142.5

A3HG56-*R14*-*D-10 A3HG56-*R14*-*D-11 9194 80 36 157.5 161.5 168.5 161.5 70 62 155.5 159.5 201 140A3HG56-*R14*-*C-10 A3HG56-*R14*-*C-11 918094 36 157.5 161.5 193.5 186.5 70 62 155.5 159.5 226 165

A3HG100-*R14*-*D-10 A3HG100-*R14*-*D-11 112.5112.5 90 42.5 169 173 199 192 78 68.5 167 171 231 170A3HG71-*R14*-*D-10 A3HG71-*R14*-*D-11 10291105 43.5 163.5 167.5 187 180 79 69.5 161.5 165.5 219 158

A3HG145-*R14*-*D-10 A3HG145-*R14*-*D-11 12393.5123 46 175.5 179.5 222.5 215.5 81.5 72 173.5 177.5 254.5 193.5A3HG180-*R14*-*D-10 A3HG180-*R14*-*D-11 129129 87.5 40 183.5 190 249.5 242.5 75.5 181.5 190 281.5 220.566

Old Model New Model

A flow control valve is not includedwith the pump. Install the valve separately.

A flow control valve is not includedwith the pump. Install the valve separately.

Old Model New Model

● Dimensions

● Graphic Symbol

F F’

H H’B

A

CB’C’

D E D’

E’

A’

Pilot Port Pilot Port

Pilot Port Pilot Port

Load Sensing Port Load Sensing Port

Load Sensing Port Load Sensing Port

Max. Max.M

ax.

Max

.

(With a plug) (With a plug)

(With a plug)

Page 48: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

200 A3HG Series High Pressure Variable Displacement Piston Pumps Spline Shaft End/Through Drive

■ Splined Shaft End

■ Second PumpThe through drive system allows a main pump to be used as a double pump with a connected second pump.

● Connecting pump1. Remove the End Cover and Seal Cover2. Insert the O-Ring, which is the attachment of seal cover, to the second pump of spigot joint part of boss. 3. Prepare the coupling and adapter (Flange) separately and joint the second pump.

For the SAE pump mount flange, through drive kits with components required to connect a second pump, such as couplings and adapters (flanges), are available. For more details, refer to page 202.

● Allowable Input TorqueThe maximum torque of pumps is limited by shaft and coupling assembly strength. When determining the second pump type, the value of the torque for a particular pump should not exceed the value shown in the table below.

● Flange Mtg.:A3HG*-FR**SP ● Foot Mtg.:A3HG*-LR**SP

A

B “C”

“D” Thd. “E” Deep

Involute Spline

Tolerance Class 5)Flat Root Side Fit

(ANSI B 92.1

F

★1.

★2.

T1: Main pump input torqueT2: Second pump input torque

For selection of the appropriate pump, both values, (1) and (2), should be satisfied.

Torque Fornula

T: Input Torque [Nm] P: Pressure [MPa] q: Displacement [cm3/rev]T= 2πP×q

Model Numbers A B C D EA3HG16-FR**SP-*C 38 19.5 11T-16/32DP 1/4-20 UNC 14A3HG37-FR**SP-*C 46 25 15T-16/32DP 1/4-20 UNC 16A3HG37-FR**SP-*D 56 35 14T-12/24DP 5/16-18 UNC 19A3HG56-FR**SP-*C 46 25 15T-16/32DP 1/4-20 UNC 16A3HG56-FR**SP-*D 56 35 14T-12/24DP 5/16-18 UNC 19A3HG71-FR**SP-*D 56 35 14T-12/24DP 5/16-18 UNC 19A3HG100-FR**SP-*D 62 38 17T-12/24DP 7/16-14 UNC 28A3HG145-FR**SP-*D 75 45 13T-8/16DP 1/2-13 UNC 32A3HG180-FR**SP-*D 75 45 13T-8/16DP 1/2-13 UNC 32

Model Numbers Number of PumpMtg. Bolts

(1)Arrowable Input Torque T1+T2 Nm

(2)Second pump input torqueT2 Nm

A3HG16-*R**K-E1Ctwo

94 or less87 or lessA3HG16-*R**K-U1C/U2C/J1C 135 or less

A3HG16-*R**SP-*C 136 or lessA3HG37/56-*R**K-E1C

two

279 or less

—A3HG37-*R**K-U1C/U2C/J1C A3HG56-*R**K-U1C/U2C/J1C 263 or less

A3HG37/56-*R**SP-*C 297 or lessA3HG37/56/71-*R**K-E1D

four

451 or less

297 or lessA3HG37-*R**K-U1D/U2D/J1D A3HG56-*R**K-U1D/U2D/J1D A3HG71-*R**K-U1D/U2D/J1D

528 or less

A3HG37/56/71-*R**SP-*D 801 or lessA3HG100-*R**K-E1D

four789 or less

609 or lessA3HG100-*R**K-U1D/U2D/J1D 852 or lessA3HG100-*R**SP-*D 1321 or lessA3HG145/180-*R**K-E1D

four

1295 or less

609 or lessA3HG145-*R**K-U1D/U2D/J1D A3HG180-*R**K-U1D/U2D/J1D 1436 or less

A3HG145/180-*R**SP-*D 1965 or less

Model Numbers FA3HG16-LR**SP-*C 35A3HG37-LR**SP-*C 38A3HG37-LR**SP-*D 61A3HG56-LR**SP-*C 38A3HG56-LR**SP-*D 61A3HG71-LR**SP-E1D 69A3HG71-LR**SP-U1D/U2D/J1D 61A3HG100-LR**SP-*D 75A3HG145-LR**SP-*D 28A3HG180-LR**SP-*D 28

● For other dimensions, refer to “Flange Mtg.”.

Page 49: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

201

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Through Drive

■ A3HG16

■ A3HG37/A3HG56

■ A3HG100/A3HG145/A3HG180

■ A3HG71

104

57

R11

16

9T-16/32DP(ANSI B 92.1Flat Root Side FitTolerance Class 5)

Involute Spline4 PlacesM8 Thd. 16 Deep

68 Dia.

28

19

24.5

22.3

1.8

+0.

064

+0.

025

Dia

.

41 D

ia.

Attachment Side20350

15T-16/32DP(ANSI B 92.1Flat Root Side FitTolerance Class 5)

Involute Spline

88+

0.1D

ia.

41 D

ia.56

Dia

.A

Dia

.

C

D

6742

Attachment Side

1.5 0-0.1

38

0 100

140

76

130

B

R122 Places

4 Places

M10 Thd. 18 Deep

M12 Thd. “E” Deep

Dia.Dia.

Frange/Port Code A BE1

A3HG37-*R***-*C 25124

28

22

19

236.5278253

A3HG37-*R***-*DA3HG56-*R***-*CA3HG56-*R***-*D

U1/U2/J1109106

+0.030+0.076

+0.036+0.09082.55

80

C D EModel Number

Dia.

Dia.

Frange/Port Code A BE1

U1/U2/J1109106

+0.030+0.076

+0.036+0.09082.55

80

2 PlacesM10 Thd. 18 Deep

8 PlacesM12 Thd. 22 Deep

68

100

76

140B

R12

130

100

15T-16/32DP(ANSI B 92.1Flat Root Side FitTolerance Class 5)

Involute Spline

88+

0.1

0D

ia.

41 D

ia.56

Dia

.

A D

ia.

Attachment Side

1.5 0-0.1

274.5

3826

42

67

18T-16/32DP(ANSI B 92.1Flat Root Side FitTolerance Class 5)

Involute Spline

88+

0.1 D

ia.

64 D

ia.

A D

ia.

F

1.5 0-0.1

74.544.5

0

C Attachment Side

78

26

EB

D

12 PlacesM12 Thd. 22 Deep

2 PlacesM10 Thd. 18 Deep

14011684

887636

Dia.Dia.

Frange/Port Code A BE1

U1/U2/J1109106

+0.030+0.076

+0.036+0.09082.55

80

A3HG100 300 168 144 120120174 146

174 146 146323.5362.5

A3HG145A3HG180

C D E FSeries Number

Page 50: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

202 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Through Drive

Through Drive Kit■ Pump Mount Flange

Main Pump and Second Pump Frange/Port Code Pump Mount Flange

U1/U2/J1 SAE J744

■ Pump Combination● Key Type

Main Pump ★

Second Pump A3HG16 A3HG37 A3HG56 A3HG71 A3HG100 A3HG145 A3HG180

A3HG16-*R**K-U1C/U2C/J1C TG1-A-A2-ABK TG1-B-A2-ABK TG1-C-A2-ABKA3HG37-*R**K-U1C/U2C/J1C TG1-B-B2-BBK TG1-C-B2-BBKA3HG37-*R**K-U1D/U2D/J1D TG1-B-C4-CK TG1-C-C4-CKA3HG56-*R**K-U1C/U2C/J1C TG1-B-B2-BBK TG1-C-B2-BBKA3HG56-*R**K-U1D/U2D/J1D TG1-B-C4-CK TG1-C-C4-CKA3HG71-*R**K-U1D/U2D/J1D TG1-B-C4-CK TG1-C-C4-CKA3HG100-*R**K-U1D/U2D/J1D TG1-C-D4-CCKA3HG145-*R**K-U1D/U2D/J1D TG1-C-D4-DKA3HG180-*R**K-U1D/U2D/J1D TG1-C-D4-DK

★ Frange/Port Code:U1/U2/J1

● Spline Type

Main Pump ★

Second Pump A3HG16 A3HG37 A3HG56 A3HG71 A3HG100 A3HG145 A3HG180

A3HG16-*R**SP-U1C/U2C/J1C TG1-A-A2-ABSP TG1-B-A2-ABSP TG1-C-A2-ABSPA3HG37-*R**SP-U1C/U2C/J1C TG1-B-B2-BBSP TG1-C-B2-BBSPA3HG37-*R**SP-U1D/U2D/J1D TG1-B-C4-CSP TG1-C-C4-CSPA3HG56-*R**SP-U1C/U2C/J1C TG1-B-B2-BBSP TG1-C-B2-BBSPA3HG56-*R**SP-U1D/U2D/J1D TG1-B-C4-CSP TG1-C-C4-CSPA3HG71-*R**SP-U1D/U2D/J1D TG1-B-C4-CSP TG1-C-C4-CSPA3HG100-*R**SP-U1D/U2D/J1D TG1-C-D4-CCSPA3HG145-*R**SP-U1D/U2D/J1D TG1-C-D4-DSPA3HG180-*R**SP-U1D/U2D/J1D TG1-C-D4-DSP

★ Frange/Port Code:U1/U2/J1

■ Model Number DesignationTG1 -A -A 2 -A K -10Series

Number Main Pump Second Pump SAE Code:Mtg. Flange

Second Pump Number of Mtg. Bolts

Second Pump SAE Code:Shaft End

Second Pump Shaft Extension Design Number

TG1

A:A3HG16 A:SAE A 2:Two AB:SAE AB

K:Keyed Shaft

SP: Splined Shaft

10

B: A3HG37-A3HG71

A:SAE A 2:Two AB:SAE ABB:SAE B 2:Two BB:SAE BBC:SAE C 4:Four C:SAE C

C: A3HG100-A3HG180

A:SAE A 2:Two AB:SAE ABB:SAE B 2:Two BB:SAE BBC:SAE C 4:Four C:SAE C

D:SAE D 4:Four CC:SAE CCD:SAE D

■ Connecting pump● Key TypeTG1-A-A2-ABK(1) Mount the gasket and flange to the main pump, and fix it with hexagon socket head cap screws.

Tightening torque : 30.9 - 37.7 Nm(2) Insert the coupling into the shaft end of the second pump, position the coupling at a point where it reaches the shaft end, as shown

in the figure below, and then fix the coupling with hexagon socket set screws.Tightening torque : 1.50 - 1.84 Nm

(3) Apply lithium grease to the O-ring, and insert the O-ring into the male spigot of the second pump (see the figure right).

(4) Prepare M10 hexagon head bolts (hardness classification: 10.9) and plain washers (hardness classification: 22H Hv 220-300).Mount the second pump to the flange with the bolts and washers.

O-ring

hexagon socket set screws M4 × 5 Lg.

S80 fluororubber

2 Hex. Soc.

Second Pump

Page 51: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

203

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Through Drive

TG1-B-A2-ABK, TG1-C-A2-ABK(1) Mount the coupling to the shaft end of the second pump, position the coupling at a point where the coupling shaft end reaches the

stepped portion of the second pump shaft, as shown in the figure below, and then fix the coupling with hexagon socket set screws.Tightening torque : 1.50 - 1.84 Nm

(2) Apply lithium grease to the S80 O-ring, and insert the O-ring into the male spigot of the flange. (3) Prepare M10 hexagon head bolts (hardness classification: 10.9) and plain washers (hardness classification: 22H Hv 220-300).

Mount the second pump to main pump with the bolts and washers.

TG1-B-B2-BBK, TG1-B-C4-CK, TG1-C-B2-BBK, TG1-C-C4-CK(1) Apply lithium grease to the S80 O-ring, and insert the O-ring into the male spigot of the flange. Mount the flange to the main

pump with hexagon socket head cap screws.Tightening torque : 104 - 127 Nm

(2) Insert the coupling into the shaft end of the second pump, position the coupling at a point where it reaches the shaft end, as shown in the figure below, and then fix the coupling with hexagon socket set screws.Tightening torque : 5.31 - 6.49 Nm

(3) Apply lithium grease to the O-ring, and insert the O-ring into the male spigot of the second pump (see the figure below).(4) Prepare M12 hexagon head bolts (hardness classification: 10.9) and plain washers (hardness classification: 22H Hv 220-300).

Mount the second pump to the flange with the bolts and washers.

TG1-C-D4-CCK, TG1-C-D4-DK(1) Mount the P16 O-ring to the O-ring groove on the reverse side of the flange (see the figure below).(2) Apply lithium grease to the S80 O-ring, and insert the O-ring into the male spigot of the flange. Mount the flange to the main

pump with hexagon socket head cap screws.Tightening torque : 104 - 127 Nm

(3) Insert the coupling into the shaft end of the second pump, position the coupling at a point where it reaches the shaft end, as shown in the figure below, and then fix the coupling with hexagon socket set screws.Tightening torque : 5.31 - 6.49 Nm

(4) Apply lithium grease to the G160 O-ring, and mount the O-ring to the O-ring groove on the flange.(5) Prepare M20 hexagon head bolts (hardness classification: 10.9) and plain washers (hardness classification: 22H Hv 220-300).

Mount the second pump to the flange with the bolts and washers.

O-ring S80 fluororubber

2 Hex. Soc.

Second Pump

hexagon socket set screws M4 × 5 Lg.

3 Hex. Soc.

O-ring “A”

Second Pump

hexagon socket set screws M6 × 6 Lg.

hexagon socket set screws M6 × 6 Lg.3 Hex. Soc.

P16 fluororubber

Flange Reverse Side

O-ring 8 Places

Second Pump

Model Numbers O-ring “A”

TG1-B-B2-BBKS100 fluororubber

TG1-C-B2-BBK

TG1-B-C4-CKS125 fluororubber

TG1-C-C4-CK

Page 52: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

204 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Through Drive

● Spline TypeTG1-A-A2-ABSP(1) Mount the gasket and flange to the main pump, and fix it with hexagon socket head cap screws.

Tightening torque : 30.9 - 37.7 Nm(2) Mount the coupling to the shaft end of the second pump or the main pump.(3) Apply lithium grease to the S80 O-ring, and insert the O-ring into the male spigot of the second pump (see the figure below).(4) Prepare M10 hexagon head bolts (hardness classification: 10.9) and plain washers (hardness classification: 22H Hv 220-300).

Mount the second pump to the flange with the bolts and washers.

TG1-B-A2-ABSP, TG1-C-A2-ABSP(1) Mount the coupling to the shaft end of the second pump or the main pump.(2) Apply lithium grease to the S80 O-ring, and insert the O-ring into the male spigot of the second pump (see the figure below).(3) Prepare M10 hexagon head bolts (hardness classification: 10.9) and plain washers (hardness classification: 22H Hv 220-300).

Mount the second pump to the main pump with the bolts and washers.

TG1-B-B2-BBSP, TG1-B-C4-CSP, TG1-C-B2-BBSP, TG1-C-C4-CSP(1) Apply lithium grease to the S80 O-ring, and insert the O-ring into the male spigot of the flange. Mount the flange to the main

pump with hexagon socket head cap screws.Tightening torque : 104 - 127 Nm

(2) Mount the coupling to the shaft end of the second pump or the main pump.(3) Apply lithium grease to the O-ring, and insert the O-ring into the male spigot of the second pump (see the figure below).(4) Prepare M12 hexagon head bolts (hardness classification: 10.9) and plain washers (hardness classification: 22H Hv 220-300).

Mount the second pump to the flange with the bolts and washers.

TG1-C-D4-CCSP, TG1-C-D4-DSP(1) Mount the P16 O-ring to the O-ring groove on the reverse side of the flange (see the figure below).(2) Apply lithium grease to the S80 O-ring, and insert the O-ring into the male spigot of the flange. Mount the flange to the main

pump with hexagon socket head cap screws.Tightening torque : 104 - 127 Nm

(3) Mount the coupling to the shaft end of the second pump or the main pump.(4) Apply lithium grease to the G160 O-ring, and mount the O-ring to the O-ring groove on the flange.(5) Prepare M20 hexagon head bolts (hardness classification: 10.9) and plain washers (hardness classification: 22H Hv 220-300).

Mount the second pump to the flange with the bolts and washers.

O-ring S80 fluororubber

Second Pump

Second Pump

O-ring “A”

P16 fluororubber

Flange Reverse Side

O-ring 8 Places

Model Numbers O-ring “A”

TG1-B-B2-BBSPS100 fluororubber

TG1-C-B2-BBSP

TG1-B-C4-CSPS125 fluororubber

TG1-C-C4-CSP

Page 53: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

205

PISTON PUMPS

A3

HG

Ser

ies

A3HG Series High Pressure Variable Displacement Piston Pumps Through Drive

■ TG1-A-A2-ABK ■ TG1-A-A2-ABSP

■ TG1-B-A2-ABK/TG1-C-A2-ABK

TG1-B-A2-ABK

TG1-C-A2-ABK

■ TG1-B-A2-ABSP/TG1-C-A2-ABSP

■ TG1-B-B2-BBK/TG1-C-B2-BBK ■ TG1-B-B2-BBSP/TG1-C-B2-BBSP

Section X-X

Section X-X Section Y-Y

From Main Pump Mt. Surface

Main pump

Main pump

Main pump

Main pump

Main pump

Gasket

CouplingA-ABK

Coupling“C”

Coupling“C”

FlangeA2

245.5

88 D

Ia.

75 100

21.4

21.4

82.5

5 D

Ia.

88 D

Ia.

82.5

5 D

Ia.

88 D

Ia.

82.5

5 D

Ia.

108

DIa

.10

1.6

DIa

.

108

DIa

.10

1.6

DIa

.

13-15.375106

106 106

130

91.5

1.5

1.5

13

1.5

13

1.5

6 Places

6 Hex. Soc.

4.79

4.79

6.38

19.05 Dia.

19.05 Dia.

25.4 Dia.

11T-16/32DP

4 Places M8×40 Lg.Soc. Hd. Cap Screw

X Y

Y

Y

Y

Y

Y

X

X

X

X

X

M10 Thd. 18 Deep

O-ring Ditch

Section Y-Y

Mass:2.5 kg Mass:2.5 kg

Main pump

GasketCouplingA-ABSP

FlangeA2

From Main Pump Mt. Surface

245.5

75 100

88 D

Ia.

82.5

5 D

Ia.

18.5-20.875106130

91.5

6 Hex. Soc.

11T-16/32DP

4 Places M8×40 Lg.Soc. Hd. Cap Screw

6 PlacesM10 Thd. 18 Deep

2 PlacesM10 Thd. 18 Deep

2 PlacesM12 Thd. 25 Deep

2 PlacesM12 Thd. 25 Deep

2 PlacesM10 Thd. 18 Deep

O-ring Ditch O-ring Ditch

From Main Pump Mt. Surface

“A”

From Main Pump Mt. Surface

“A”From Main Pump Mt. Surface

“A”

“B” 21-23

From Main Pump Mt. Surface

“A”

25124

0.3

0.4

28

26

26

B-ABK 8-10

8-11.5C-ABK

236.5278253

274.5

A B

“B” “B”

C D

“D”

Main Pump

300323.5362.5

A3HG37-*R**K-U1C/U2C/J1CA3HG37-*R**K-U1D/U2D/J1DA3HG56-*R**K-U1C/U2C/J1CA3HG56-*R**K-U1D/U2D/J1DA3HG71-*R**K-U1D/U2D/J1DA3HG100-*R**K-U1D/U2D/J1DA3HG145-*R**K-U1D/U2D/J1DA3HG180-*R**K-U1D/U2D/J1D

Section X-X Section Y-Y

276261.5303278

299.5325

348.5387.5

25124

28

26

26

B-ABSP 18.5-21

18.5-20.5C-ABSP

236.5278253

274.5

A B C DMain Pump

300323.5362.5

A3HG37-*R**SP-U1C/U2C/J1CA3HG37-*R**SP-U1D/U2D/J1DA3HG56-*R**SP-U1C/U2C/J1CA3HG56-*R**SP-U1D/U2D/J1DA3HG71-*R**SP-U1D/U2D/J1DA3HG100-*R**SP-U1D/U2D/J1DA3HG145-*R**SP-U1D/U2D/J1DA3HG180-*R**SP-U1D/U2D/J1D

“D”

FlangeB2

FlangeB2

O-ring S80 fluororubber

Coupling“C”

Coupling

O-ringDitch

“B”

Through Drive Kit

TG1-B-B2-BBK

TG1-C-B2-BBK

B-BBK14-15

14-16.5 C-BBK

A CBMain Pump

A3HG37-*R**K-U1C/U2C/J1CA3HG37-*R**K-U1D/U2D/J1DA3HG56-*R**K-U1C/U2C/J1CA3HG56-*R**K-U1D/U2D/J1DA3HG71-*R**K-U1D/U2D/J1DA3HG100-*R**K-U1D/U2D/J1DA3HG145-*R**K-U1D/U2D/J1DA3HG180-*R**K-U1D/U2D/J1D

Through Drive Kit

276261.5303278

299.5325

348.5387.5

TG1-B-B2-BBSP

TG1-C-B2-BBSP

B-BBSP

C-BBSP

A BMain Pump

A3HG37-*R**SP-U1C/U2C/J1CA3HG37-*R**SP-U1D/U2D/J1DA3HG56-*R**SP-U1C/U2C/J1CA3HG56-*R**SP-U1D/U2D/J1DA3HG71-*R**SP-U1D/U2D/J1DA3HG100-*R**SP-U1D/U2D/J1DA3HG145-*R**SP-U1D/U2D/J1DA3HG180-*R**SP-U1D/U2D/J1D

Through Drive Kit

TG1-B-A2-ABSP

TG1-C-A2-ABSP

Through Drive Kit

O-ringDitch

O-ringDitch

146174

146174

130

130

28.3

O-ring S80 fluororubber

4 Places M12×30 Lg.Soc. Hd. Cap Screw

10 Hex. Soc.4 Places M12×30 Lg.Soc. Hd. Cap Screw

10 Hex. Soc.

15T-16/32DP

Masskg

3.6

3.7

Masskg

3.5

3.5

Masskg

0.3

0.4

Masskg

Page 54: A3HG Series High Pressure Variable Displacement Piston Pumps · 155 PISTON PUMPS A3HG Series High Pressure Variable Displacement Piston Pumps A3HG Series Setting Discharge Pressure

206 A3HG Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

A3HG Series High Pressure Variable Displacement Piston Pumps Through Drive

■ TG1-B-C4-CK/TG1-C-C4-CK ■ TG1-B-C4-CSP/TG1-C-C4-CSP

■ TG1-C-D4-CCK/TG1-C-D4-DK ■ TG1-C-D4-CCSP/TG1-C-D4-DSP

From Main Pump Mt. Surface

“A”

From Main Pump Mt. Surface

“A”From Main Pump Mt. Surface

“A”

From Main Pump Mt. Surface

“A”

Section X-X

Section X-X Section Y-Y

Section Y-Y

288273.5315290

311.5337

360.5399.5

TG1-B-C4-CK

TG1-C-C4-CK

B-CK12-14 5.8

612-14.5 C-CK

A CB Masskg

5.6

5.7

Main Pump

A3HG37-*R**K-U1C/U2C/J1CA3HG37-*R**K-U1D/U2D/J1DA3HG56-*R**K-U1C/U2C/J1CA3HG56-*R**K-U1D/U2D/J1DA3HG71-*R**K-U1D/U2D/J1DA3HG100-*R**K-U1D/U2D/J1DA3HG145-*R**K-U1D/U2D/J1DA3HG180-*R**K-U1D/U2D/J1D

Through Drive Kit

383.5

14

422.5

360.5337

399.5360.5337

399.5360.5399.5

TG1-C-D4-CCK

TG1-C-D4-DK

C-CCK 17-19.5

C-DK 19-21.5

D4-1

D4-215

A CBMain Pump

A3HG145-*R**K-U1D/U2D/J1DA3HG100-*R**K-U1D/U2D/J1D

A3HG145-*R**K-U1D/U2D/J1DA3HG180-*R**K-U1D/U2D/J1D

A3HG180-*R**K-U1D/U2D/J1D

Through Drive Kit

TG1-C-D4-CCK

TG1-C-D4-DK

37 30 10.7

16.75034 11.14

ED NF H J K

288273.5315290

311.5337

360.5399.5

TG1-B-C4-CSP

TG1-C-C4-CSP

B-CSP21-23

21-23.5 C-CSP

A CBMain Pump

A3HG37-*R**SP-U1C/U2C/J1CA3HG37-*R**SP-U1D/U2D/J1DA3HG56-*R**SP-U1C/U2C/J1CA3HG56-*R**SP-U1D/U2D/J1DA3HG71-*R**SP-U1D/U2D/J1DA3HG100-*R**SP-U1D/U2D/J1DA3HG145-*R**SP-U1D/U2D/J1DA3HG180-*R**SP-U1D/U2D/J1D

Through Drive Kit

1.5

114.5174

114.5174

16

4.6

1.5

167.97

9.56

FlangeC4

FlangeC4

Main pump

Main pump

Main pump

Main pump

O-ring S80 fluororubber

O-ring S80 fluororubber

O-ring S80 fluororubber

O-ring S80 fluororubber

Coupling“C”

Coupling“D”

“B”

4.6

14“H” “J” Dia.Flange

“C”

FlangeD4-1

“E” “C”

“D”

Coupling“C”

“B” “B”

133

DIa

.12

7 D

Ia.

133

DIa

.12

7 D

Ia.

114.

5

35.5

“K”

150

161.

620

0

161.

620

0

114.

515

0

O-ringDitch

O-ringDitch

4 PlacesM12 Thd. 22 Deep

4 PlacesM12 Thd. 22 Deep

31.75 Dia.

38.1

44.45

42.5

49.6

4 Places M12×40 Lg.Soc. Hd. Cap Screw

10 Hex. Soc.4 Places M12×40 Lg.Soc. Hd. Cap Screw

10 Hex. Soc.

14T-12/24DP

170

DIa

.15

2.4

DIa

.

170

DIa

.15

2.4

DIa

.

O-ringDitch

4 PlacesM20 Thd. “F” Deep

4 PlacesM20 Thd. 37 Deep

161.6224

8 Places M12דN” Lg.Soc. Hd. Cap Screw

10 Hex. Soc. 8 Places M12×30 Lg.Soc. Hd. Cap Screw

10 Hex. Soc.

Through Drive Kit

TG1-C-D4-CCSP

TG1-C-D4-DSP

C-CCSP 24-26.5

C-DSP 30-32.5

A BMain PumpThrough Drive Kit

Coupling“B”

O-ringDitch

C

161.6224

Masskg

Masskg

TG1-C-D4-CCSP

TG1-C-D4-DSP

17T-12/24DP

13T-8/16DP

Through Drive Kit

10

10.2

Masskg

X Y

Y

Y

Y

X

X

X

D

A3HG100-*R**SP-U1D/U2D/J1DA3HG145-*R**SP-U1D/U2D/J1D

A3HG145-*R**SP-U1D/U2D/J1DA3HG180-*R**SP-U1D/U2D/J1D

A3HG180-*R**SP-U1D/U2D/J1D


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